Our medium sized 290cc oval port cylinder head is recommended for moderate street or street/strip big block chevys with displacements up to 509 cubic inches, operating at or below 6500 RPM. Features 100% CNC machined intake runners , exhaust ports and combustion chambers; capable of flowing 375 CFM at 0.700" of lift.
| Included Components | |
| 100% CNC Ported Combustion Chambers | |
| 100% CNC Ported Exhaust Ports | |
| 100% CNC Ported Intake Ports | |
|
Competition 5-angle Valve Job |
|
| 11/32" Intake Valve, 2.250" x 5.500" O.A.L | |
| 11/32" Nail Head Exhaust Valve, 1.880" x 5.450" Overall Valve Length | |
| PAC Racing Springs 1.550” OD Solid Roller Dual Valve Drag Race Spring, 220 lbs. on seat, .710” maximum lift, - 260* max recommended duration, Max RPM 7200-7400 (upgrades available) | |
| PAC Racing #1940 1.550” OD Hydraulic Roller Dual Valve Spring, 175 lbs. on seat, .725” maximum lift, Max RPM 6500-6700 | |
| 10° Steel Retainers 1.500" O.D x 1.120"I.D x .705" I.D | |
| 10° 11/32" Valve Keepers with lashcap recess | |
| ARP 7/16" Rocker Studs Intake | |
| ARP 7/16" Rocker Studs Exhaust | |
| Adjustable 3/8" Guide Plates | |
| 11/32" Viton Valve Seals | |
| Hardened Valve Spring I.D Locator 1.550" O.D x .705" I.D - For 8000 Spring | |
| Hardened Valve Spring I.D Locator 1.655" O.D x 1.565" I.D – For 8002 Spring | |
| Intake Valve Seats 2.450" O.D x 1.950" I.D x .375" Deep | |
| Exhaust Valve Seats 2.000" O.D x 1.580" I.D x .375" Deep | |
| 11/32" Intake Bronze Valve Guides .502" O.D x 2.10" O.A.L | |
| 11/32" Exhaust Bronze Valve Guides .502" O.D x 2.25" O.A.L | |
| 290cc Competition Flow Chart | ||||||||
| .200 | .300 | .400 | .500 | .550 | .600 | .650 | .700 | |
| Int | 159 | 233 | 289 | 327 | 339 | 354 | 362 | 369 |
| Exh | 135 | 180 | 230 | 262 | 271 | 278 | 286 | 292 |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.310", intake 3/4" radius plate exhaust, 1 7/8" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
290cc
|
| Intake Port Dimension |
2.030"H x 1.830"W x1/2 Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
135cc
|
| Exhaust Port Dimension |
1.770"H x 2.010" W
|
| Exhaust Port Location |
.375" Raised
|
| Combustion Chamber Size(Full CNC) |
112cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
24°/4° Int, 15°/4° Exh
|
| Valve Spring Pocket Diameter |
1.725" O.D
|
| Max Valve Spring Pocket Machining |
1.750" O.D
|
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.250"
|
| Flat Mill |
.006" per cc/ Maximum 102cc
|
| Angle Mill |
.009" per cc/ Maximum 97cc
|
| Note: Angle mills might require a .120" Thick intake gasket. | |
| Minimum Cross Sectional Area |
2.895 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
|
CARB Status: This product is not legal for sale or use on emission-controlled vehicles and intended for dedicated race vehicles only. |
|
| Recommended Components: | |
| Intake Port Gasket | |
| Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes. | |
| Exhaust Port Gasket | |
| Head Gasket |
Fel-Pro #1047 (Mark V and VI) or AFR #6849
|
| Head Gasket |
Fel-Pro #1017-1 (Mark IV) or AFR #6850
|
| Head Gasket |
Fel-Pro #1047 (Mark V and VI) or AFR #6849
|
| Head Bolts |
ARP 135-3703 (Mark IV) or AFR #6306
|
| Head Bolts |
ARP 135-3707 (Mark V) or AFR #6308
|
| Head Studs |
ARP 235-4713 or AFR #6307
|
| Head Bolt Washers |
Manley, AFR #6320
|
| Stud Girdle, (AFR Specific) | |
| 7/16 Stud Mount Rocker Arms - 1.7 Ratio (For Optimized Geometry) | |
| 1.7 Shaft Mount Rocker Arms T&D | |
| Shaft Mount Rocker Arms |
Crower or Jesel Pro Series
|
| Suggested Manifold |
Victor Jr
|
| Suggested Manifold |
RPM Performer
|
| Suggested Manifold |
Air Gap #7561
|
| Spark Plug Starting Range |
Autolite 3924
|
| Note: 1” longer head bolt needed on four bottom exhaust bolt holes. | |
Our medium sized 290cc oval port cylinder head is recommended for moderate street or street/strip big block chevys with displacements up to 509 cubic inches, operating at or below 6500 RPM. Features 100% CNC machined intake runners , exhaust ports and combustion chambers; capable of flowing 375 CFM at 0.700" of lift.
| Included Components | |
| 100% CNC Ported Combustion Chambers | |
| 100% CNC Ported Exhaust Ports | |
| 100% CNC Ported Intake Ports | |
|
Competition 5-angle Valve Job |
|
| 11/32" Intake Valve, 2.250" x 5.500" O.A.L | |
| 11/32" Nail Head Exhaust Valve, 1.880" x 5.450" Overall Valve Length | |
| PAC Racing Springs 1.550” OD Solid Roller Dual Valve Drag Race Spring, 220 lbs. on seat, .710” maximum lift, - 260* max recommended duration, Max RPM 7200-7400 (upgrades available) | |
| PAC Racing #1940 1.550” OD Hydraulic Roller Dual Valve Spring, 175 lbs. on seat, .725” maximum lift, Max RPM 6500-6700 | |
| 10° Steel Retainers 1.500" O.D x 1.120"I.D x .705" I.D | |
| 10° 11/32" Valve Keepers with lashcap recess | |
| ARP 7/16" Rocker Studs Intake | |
| ARP 7/16" Rocker Studs Exhaust | |
| Adjustable 3/8" Guide Plates | |
| 11/32" Viton Valve Seals | |
| Hardened Valve Spring I.D Locator 1.550" O.D x .705" I.D - For 8000 Spring | |
| Hardened Valve Spring I.D Locator 1.655" O.D x 1.565" I.D – For 8002 Spring | |
| Intake Valve Seats 2.450" O.D x 1.950" I.D x .375" Deep | |
| Exhaust Valve Seats 2.000" O.D x 1.580" I.D x .375" Deep | |
| 11/32" Intake Bronze Valve Guides .502" O.D x 2.10" O.A.L | |
| 11/32" Exhaust Bronze Valve Guides .502" O.D x 2.25" O.A.L | |
| 290cc Competition Flow Chart | ||||||||
| .200 | .300 | .400 | .500 | .550 | .600 | .650 | .700 | |
| Int | 159 | 233 | 289 | 327 | 339 | 354 | 362 | 369 |
| Exh | 135 | 180 | 230 | 262 | 271 | 278 | 286 | 292 |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.310", intake 3/4" radius plate exhaust, 1 7/8" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
290cc
|
| Intake Port Dimension |
2.030"H x 1.830"W x1/2 Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
135cc
|
| Exhaust Port Dimension |
1.770"H x 2.010" W
|
| Exhaust Port Location |
.375" Raised
|
| Combustion Chamber Size(Full CNC) |
112cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
24°/4° Int, 15°/4° Exh
|
| Valve Spring Pocket Diameter |
1.725" O.D
|
| Max Valve Spring Pocket Machining |
1.750" O.D
|
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.250"
|
| Flat Mill |
.006" per cc/ Maximum 102cc
|
| Angle Mill |
.009" per cc/ Maximum 97cc
|
| Note: Angle mills might require a .120" Thick intake gasket. | |
| Minimum Cross Sectional Area |
2.895 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
|
CARB Status: This product is not legal for sale or use on emission-controlled vehicles and intended for dedicated race vehicles only. |
|
| Recommended Components: | |
| Intake Port Gasket | |
| Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes. | |
| Exhaust Port Gasket | |
| Head Gasket |
Fel-Pro #1047 (Mark V and VI) or AFR #6849
|
| Head Gasket |
Fel-Pro #1017-1 (Mark IV) or AFR #6850
|
| Head Gasket |
Fel-Pro #1047 (Mark V and VI) or AFR #6849
|
| Head Bolts |
ARP 135-3703 (Mark IV) or AFR #6306
|
| Head Bolts |
ARP 135-3707 (Mark V) or AFR #6308
|
| Head Studs |
ARP 235-4713 or AFR #6307
|
| Head Bolt Washers |
Manley, AFR #6320
|
| Stud Girdle, (AFR Specific) | |
| 7/16 Stud Mount Rocker Arms - 1.7 Ratio (For Optimized Geometry) | |
| 1.7 Shaft Mount Rocker Arms T&D | |
| Shaft Mount Rocker Arms |
Crower or Jesel Pro Series
|
| Suggested Manifold |
Victor Jr
|
| Suggested Manifold |
RPM Performer
|
| Suggested Manifold |
Air Gap #7561
|
| Spark Plug Starting Range |
Autolite 3924
|
| Note: 1” longer head bolt needed on four bottom exhaust bolt holes. | |
Recommended for agressive street, street/strip or race big block chevys with displacements up to 540 cubic inches operating at or below 6800 RPM. The 300cc oval port cylinder heads feature 100% CNC machined intake runners, exhaust ports and combustion chambers; our 300cc oval port flows 388 CFM at 0.700" lift and is the ultimate street/race weapon without having to step up to a rectangular port design.
| Included Components | |
| 100% CNC Ported Combustion Chambers | |
| 100% CNC Ported Exhaust Ports | |
| 100% CNC Ported Intake Ports | |
|
Competition 5-Angle Valve Job |
|
| 11/32" Intake Valve, 2.300" x 5.500" O.A.L | |
| 11/32" Nail Head Exhaust Valve, 1.880" x 5.450" Overall Valve Length | |
|
PAC Racing Spring #1224 1.625 O.D. Solid Roller Dual Valve Spring, 275lbs on seat, .850 Maximum Lift, Max RPM 7400-7600, Uses #8518 Steel Retainer (upgrades available) |
|
| 10° Steel Retainers 1.500" O.D x 1.168" I.D x .844" I.D | |
|
PAC Racing #1940 1.550" OD Hydraulic Roller Dual Valve Spring, 175 lbs. on seat, .725" maximum lift, Max RPM 6500-6700; Uses #8511 Steel Retainer and #8044 Spring Cup |
|
| 10° Steel Retainers 1.500" O.D x 1.120" I.D x .705" I.D | |
| 10° 11/32" Valve Keepers with lashcap recess | |
| ARP 7/16" Rocker Studs Intake | |
| ARP 7/16" Rocker Studs Exhaust | |
| Adjustable 3/8" Guide Plates | |
| 11/32" Viton Valve Seals | |
| Hardened Spring Cup 1.740” O.D / 1.650” I.D | |
| Intake Valve Seats 2.450" O.D x 1.950" I.D x .375" Deep | |
| Exhaust Valve Seats 2.000" O.D x 1.580" I.D x .375" Deep | |
| 11/32" Intake Bronze Valve Guides .502" O.D x 2.10" O.A.L | |
| 11/32" Exhaust Bronze Valve Guides .502" O.D x 2.25" O.A.L | |
| 300cc Competition Flow Chart | ||||||||
| .200 | .300 | .400 | .500 | .550 | .600 | .650 | .700 | |
| Int | 161 | 238 | 298 | 342 | 359 | 374 | 384 | 388 |
| Exh | 139 | 191 | 234 | 266 | 275 | 289 | 294 | 298 |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.500", 3/4" radius plate exhaust, 1 7/8" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
300cc
|
| Intake Port Dimension |
2.055"H x 1.840"W x1/2 Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
135cc
|
| Exhaust Port Dimension |
1.770"H x 2.010" W
|
| Exhaust Port Location |
.375" Raised
|
| Combustion Chamber Size (Full CNC) |
112cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
24°/4° Int, 15°/4° Exh
|
| Valve Spring Pocket Diameter |
1.725" O.D
|
| Max Valve Spring Pocket Machining |
1.750" O.D
|
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.250"
|
| Flat Mill |
.006" per cc/ Maximum 102cc
|
| Angle Mill |
.009" per cc/ Maximum 97cc
|
| Note: Angle mills might require a .120" Thick intake gasket. | |
| Minimum Cross Sectional Area |
3.020 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
|
CARB Status: This product is not legal for sale or use on emission-controlled vehicles and intended for dedicated race vehicles only. |
|
| Recommended Components: | |
| Intake Port Gasket |
GM #12366985 or AFR #6863
|
| Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes. | |
| Exhaust Port Gasket | |
| Head Gasket |
Fel-Pro #1017-1 (Mark IV) or AFR #6850
|
| Head Gasket |
Fel-Pro #1047 (Mark V and VI) or AFR #6849
|
| Head Bolts |
ARP 135-3703 (Mark IV) or AFR #6306
|
| Head Bolts |
ARP 135-3707 (Mark V) or AFR #6308
|
| Head Studs |
ARP 235-4713 or AFR #6307
|
| Head Bolt Washers |
Manley, AFR #6320
|
| Stud Girdle, (AFR Specific) | |
| 7/16 Stud Mount Rocker Arms - 1.7 Ratio (For Optimized Geometry) | |
| 1.7 Shaft Mount Rocker Arms T&D | |
| Shaft Mount Rocker Arms |
Crower or Jesel Pro Series
|
| Suggested Manifold |
Victor Jr
|
| Suggested Manifold |
RPM Performer
|
| Suggested Manifold |
Air Gap #7561
|
| Spark Plug Starting Range |
Autolite 3924
|
| Note: 1” longer head bolt needed on four bottom exhaust bolt holes. | |
Recommended for agressive street, street/strip or race big block chevys with displacements up to 540 cubic inches operating at or below 6800 RPM. The 300cc oval port cylinder heads feature 100% CNC machined intake runners, exhaust ports and combustion chambers; our 300cc oval port flows 388 CFM at 0.700" lift and is the ultimate street/race weapon without having to step up to a rectangular port design.
| Included Components | |
| 100% CNC Ported Combustion Chambers | |
| 100% CNC Ported Exhaust Ports | |
| 100% CNC Ported Intake Ports | |
|
Competition 5-Angle Valve Job |
|
| 11/32" Intake Valve, 2.300" x 5.500" O.A.L | |
| 11/32" Nail Head Exhaust Valve, 1.880" x 5.450" Overall Valve Length | |
|
PAC Racing Spring #1224 1.625 O.D. Solid Roller Dual Valve Spring, 275lbs on seat, .850 Maximum Lift, Max RPM 7400-7600, Uses #8518 Steel Retainer (upgrades available) |
|
| 10° Steel Retainers 1.500" O.D x 1.168" I.D x .844" I.D | |
|
PAC Racing #1940 1.550" OD Hydraulic Roller Dual Valve Spring, 175 lbs. on seat, .725" maximum lift, Max RPM 6500-6700; Uses #8511 Steel Retainer and #8044 Spring Cup |
|
| 10° Steel Retainers 1.500" O.D x 1.120" I.D x .705" I.D | |
| 10° 11/32" Valve Keepers with lashcap recess | |
| ARP 7/16" Rocker Studs Intake | |
| ARP 7/16" Rocker Studs Exhaust | |
| Adjustable 3/8" Guide Plates | |
| 11/32" Viton Valve Seals | |
| Hardened Spring Cup 1.740” O.D / 1.650” I.D | |
| Intake Valve Seats 2.450" O.D x 1.950" I.D x .375" Deep | |
| Exhaust Valve Seats 2.000" O.D x 1.580" I.D x .375" Deep | |
| 11/32" Intake Bronze Valve Guides .502" O.D x 2.10" O.A.L | |
| 11/32" Exhaust Bronze Valve Guides .502" O.D x 2.25" O.A.L | |
| 300cc Competition Flow Chart | ||||||||
| .200 | .300 | .400 | .500 | .550 | .600 | .650 | .700 | |
| Int | 161 | 238 | 298 | 342 | 359 | 374 | 384 | 388 |
| Exh | 139 | 191 | 234 | 266 | 275 | 289 | 294 | 298 |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.500", 3/4" radius plate exhaust, 1 7/8" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
300cc
|
| Intake Port Dimension |
2.055"H x 1.840"W x1/2 Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
135cc
|
| Exhaust Port Dimension |
1.770"H x 2.010" W
|
| Exhaust Port Location |
.375" Raised
|
| Combustion Chamber Size (Full CNC) |
112cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
24°/4° Int, 15°/4° Exh
|
| Valve Spring Pocket Diameter |
1.725" O.D
|
| Max Valve Spring Pocket Machining |
1.750" O.D
|
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.250"
|
| Flat Mill |
.006" per cc/ Maximum 102cc
|
| Angle Mill |
.009" per cc/ Maximum 97cc
|
| Note: Angle mills might require a .120" Thick intake gasket. | |
| Minimum Cross Sectional Area |
3.020 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
|
CARB Status: This product is not legal for sale or use on emission-controlled vehicles and intended for dedicated race vehicles only. |
|
| Recommended Components: | |
| Intake Port Gasket |
GM #12366985 or AFR #6863
|
| Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes. | |
| Exhaust Port Gasket | |
| Head Gasket |
Fel-Pro #1017-1 (Mark IV) or AFR #6850
|
| Head Gasket |
Fel-Pro #1047 (Mark V and VI) or AFR #6849
|
| Head Bolts |
ARP 135-3703 (Mark IV) or AFR #6306
|
| Head Bolts |
ARP 135-3707 (Mark V) or AFR #6308
|
| Head Studs |
ARP 235-4713 or AFR #6307
|
| Head Bolt Washers |
Manley, AFR #6320
|
| Stud Girdle, (AFR Specific) | |
| 7/16 Stud Mount Rocker Arms - 1.7 Ratio (For Optimized Geometry) | |
| 1.7 Shaft Mount Rocker Arms T&D | |
| Shaft Mount Rocker Arms |
Crower or Jesel Pro Series
|
| Suggested Manifold |
Victor Jr
|
| Suggested Manifold |
RPM Performer
|
| Suggested Manifold |
Air Gap #7561
|
| Spark Plug Starting Range |
Autolite 3924
|
| Note: 1” longer head bolt needed on four bottom exhaust bolt holes. | |
Our 280cc feature partially CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout with standard exhaust port locations. Recommended for street, towing, or street/strip engines with displacements up to 477 cubic inches, operating up to 6200 RPM. Please note, due to AFR's valve angle and location, custom pistons or notching existing pistons will be required.
| Included Components | |
| 50% CNC Ported Combustion Chambers | |
| 80% CNC Bowl Blend Intake & Exhaust | |
|
Competition 5-Angle Valve Job |
|
| 11/32" Bead Lock Intake Valve 2.250" x 5.250" O.A.L | |
| 11/32" Bead Lock Tulip Exhaust Valve 1.760" x 5.050" O.A.L | |
| PAC Racing Springs 1.550" OD Solid Roller Dual Valve Drag Race Spring 220 lbs. on seat, .680" maximum lift Max RPM 7200-7400 (upgrades available) | |
| PAC Racing #1940 1.550" OD Hydraulic Roller Dual Valve Spring 175 lbs. on seat, .725" maximum lift Max RPM 6500-6700 | |
| 10° Steel Retainers 1.500" O.D x 1.120" I.D x .705" I.D | |
| 10° 11/32" Beadlock Valve Keepers with lashcap recess | |
| ARP 7/16" Rocker Studs | |
| Adjustable 3/8" Guide Plates | |
| 11/32" Viton Valve Seals | |
| Hardened Valve Spring I.D Locator 1.550" O.D x .705" I.D | |
| Intake Valve Seats 2.450" O.D x 1.950" I.D x .375" Deep | |
| Exhaust Valve Seat 1.900" O.D. x 1.400" I.D. x .375" Deep | |
| 11/32" Exhaust Bronze Valve Guides .502" O.D x 2.25" O.A.L | |
| 280cc Street Head Flow Chart | ||||||
| .200 | .300 | .400 | .500 | .600 | ||
| Int | 169 | 244 | 301 | 349 | 383 | |
| Exh | 125 | 160 | 205 | 238 | 255 | |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.380", 3/4" radius plate exhaust, 2 1/8" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
280cc
|
| Intake Port Dimension |
2.230" H x 1.815" W x .525 Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
132cc
|
| Exhaust Port Dimension |
1.830"H x 1.600"W
|
| Exhaust Port Location |
Stock
|
| Combustion Chamber Size |
75cc or 85cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
14° Intake/8° Exhaust
|
| Valve Cant |
4.04° Intake/4.12° Exhaust
|
| Valve Spring Pocket Diameter |
1.750" O.D
|
| Max Valve Spring Pocket Machining |
1.750" O.D
|
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.360"
|
| Flat Mill |
.007" per cc
|
| Angle Mill |
.010" per cc
|
| Note:Angle mills might require a .120" Thick intake gasket. | |
| Minimum Cross Sectional Area |
3.225 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
|
CARB Status: THESE PRODUCTS ARE ILLEGAL TO OPERATE ON ANY PUBLIC HIGHWAY. THIS MEANS ANY PUBLIC PAVED OR UNPAVED ROADWAY OR IN A PUBLIC PARK. THESE PRODUCTS ARE ONLY LEGAL IF USED ON A DEDICATED RACING VEHICLE. VIOLATION ARE SUBJECT TO A MAXIMUM PENALTY OF $37,500 PER VIOLATION PER VEHICLE, REVOCATION OF REGISTRATION BY DMV, LOSS OF USE ON PUBLIC RIGHT OF WAYS AND PROOF OF CORRECTION OF THE TAMPERING. |
|
| Recommended Components: | |
| Intake Port Gasket | |
| Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes. | |
| Exhaust Port Gasket, Fel-Pro #1420 | |
| Head Gasket, 4.500 Bore, Fel-Pro #1018 | |
| Head Bolts, ARP #255-3701 | |
| Head Studs, ARP# 155-4203 12 Point | |
| Head Bolt Washers, Manley | |
| Stud Girdle | |
| 1.75 Shaft Mount Rocker Arms T&D | |
| Suggested Manifold | |
| Suggested Manifold | |
| Spark Plug Starting Range |
Autolite 3922 - Race Gas
|
| Spark Plug Starting Range |
Autolite 3924 - Pump Gas
|
Our 280cc feature partially CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout with standard exhaust port locations. Recommended for street, towing, or street/strip engines with displacements up to 477 cubic inches, operating up to 6200 RPM. Please note, due to AFR's valve angle and location, custom pistons or notching existing pistons will be required.
| Included Components | |
| 50% CNC Ported Combustion Chambers | |
| 80% CNC Bowl Blend Intake & Exhaust | |
|
Competition 5-Angle Valve Job |
|
| 11/32" Bead Lock Intake Valve 2.250" x 5.250" O.A.L | |
| 11/32" Bead Lock Tulip Exhaust Valve 1.760" x 5.050" O.A.L | |
| PAC Racing Springs 1.550" OD Solid Roller Dual Valve Drag Race Spring 220 lbs. on seat, .680" maximum lift Max RPM 7200-7400 (upgrades available) | |
| PAC Racing #1940 1.550" OD Hydraulic Roller Dual Valve Spring 175 lbs. on seat, .725" maximum lift Max RPM 6500-6700 | |
| 10° Steel Retainers 1.500" O.D x 1.120" I.D x .705" I.D | |
| 10° 11/32" Beadlock Valve Keepers with lashcap recess | |
| ARP 7/16" Rocker Studs | |
| Adjustable 3/8" Guide Plates | |
| 11/32" Viton Valve Seals | |
| Hardened Valve Spring I.D Locator 1.550" O.D x .705" I.D | |
| Intake Valve Seats 2.450" O.D x 1.950" I.D x .375" Deep | |
| Exhaust Valve Seat 1.900" O.D. x 1.400" I.D. x .375" Deep | |
| 11/32" Exhaust Bronze Valve Guides .502" O.D x 2.25" O.A.L | |
| 280cc Street Head Flow Chart | ||||||
| .200 | .300 | .400 | .500 | .600 | ||
| Int | 169 | 244 | 301 | 349 | 383 | |
| Exh | 125 | 160 | 205 | 238 | 255 | |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.380", 3/4" radius plate exhaust, 2 1/8" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
280cc
|
| Intake Port Dimension |
2.230" H x 1.815" W x .525 Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
132cc
|
| Exhaust Port Dimension |
1.830"H x 1.600"W
|
| Exhaust Port Location |
Stock
|
| Combustion Chamber Size |
75cc or 85cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
14° Intake/8° Exhaust
|
| Valve Cant |
4.04° Intake/4.12° Exhaust
|
| Valve Spring Pocket Diameter |
1.750" O.D
|
| Max Valve Spring Pocket Machining |
1.750" O.D
|
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.360"
|
| Flat Mill |
.007" per cc
|
| Angle Mill |
.010" per cc
|
| Note:Angle mills might require a .120" Thick intake gasket. | |
| Minimum Cross Sectional Area |
3.225 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
|
CARB Status: THESE PRODUCTS ARE ILLEGAL TO OPERATE ON ANY PUBLIC HIGHWAY. THIS MEANS ANY PUBLIC PAVED OR UNPAVED ROADWAY OR IN A PUBLIC PARK. THESE PRODUCTS ARE ONLY LEGAL IF USED ON A DEDICATED RACING VEHICLE. VIOLATION ARE SUBJECT TO A MAXIMUM PENALTY OF $37,500 PER VIOLATION PER VEHICLE, REVOCATION OF REGISTRATION BY DMV, LOSS OF USE ON PUBLIC RIGHT OF WAYS AND PROOF OF CORRECTION OF THE TAMPERING. |
|
| Recommended Components: | |
| Intake Port Gasket | |
| Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes. | |
| Exhaust Port Gasket, Fel-Pro #1420 | |
| Head Gasket, 4.500 Bore, Fel-Pro #1018 | |
| Head Bolts, ARP #255-3701 | |
| Head Studs, ARP# 155-4203 12 Point | |
| Head Bolt Washers, Manley | |
| Stud Girdle | |
| 1.75 Shaft Mount Rocker Arms T&D | |
| Suggested Manifold | |
| Suggested Manifold | |
| Spark Plug Starting Range |
Autolite 3922 - Race Gas
|
| Spark Plug Starting Range |
Autolite 3924 - Pump Gas
|
The 315cc heads are AFR's largest and best flowing BBF heads! They feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings, and high quality components throughout with .250 or .625 raised exhaust port locations. These heads are best suited for large displacement high RPM Big Block Ford racing engines or radical “Pro Street” style builds. Please note, due to AFR's valve angle and location, custom pistons or notching existing pistons will be required.
| Included Components | |
| 100% CNC Ported Combustion Chambers | |
| 100% CNC Ported Intake & Exhaust | |
|
Competition 5-Angle Valve Job |
|
| 11/32" Bead Lock Intake Valve 2.300" x 5.250" O.A.L | |
| 11/32" Bead Lock Tulip Exhaust Valve 1.760" x 5.050" O.A.L | |
| PAC Racing #1224 1.625" OD Solid Roller Dual Valve Spring 275 lbs. on seat, .850" maximum lift, Max RPM 7400-7600 Uses #8518 Steel Retainer & #8046 Spring Cup (upgrades available) | |
| 10° Manley Steel Retainers 1.500" O.D x 1.168" I.D x .844" I.D | |
| PAC Racing #1940 1.550" OD Hydraulic Roller Dual Valve Spring 175 lbs. on seat, .725" maximum lift Max RPM 6500-6700; Uses #8511 Steel Retainer | |
| 10° Steel Retainers 1.500" O.D x 1.120" I.D x .705" I.D | |
| 10° 11/32" Beadlock Valve Keepers with lashcap recess | |
| ARP 7/16" Rocker Studs | |
| Adjustable 3/8" Guide Plates | |
| 11/32" Viton Valve Seals | |
| Hardened Valve Spring I.D Locator 1.550" O.D x .705" I.D | |
| Intake Valve Seats 2.450" O.D x 1.950" I.D x .375" Deep | |
| Exhaust Valve Seat 1.900" O.D. x 1.400" I.D. x .375" Deep | |
| 11/32" Exhaust Bronze Valve Guides .502" O.D x 2.25" O.A.L | |
| 315cc Street Head Flow Chart | ||||||||
| .200 | .300 | .400 | .500 | .600 | .650 | .700 | .750 | |
| Int | 162 | 244 | 305 | 355 | 394 | 405 | 414 | 419 |
| Exh | 124 | 166 | 212 | 248 | 267 | 272 | 276 | 276 |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.380", 3/4" radius plate exhaust, 2 1/8" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
315cc
|
| Intake Port Dimension |
2.275" H x 1.850" W x .575 Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
142cc
|
| Exhaust Port Dimension |
1.850"H x 1.600"W
|
| Exhaust Port Location |
.250" Raised
|
| Combustion Chamber Size |
75cc or 85cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
14° Intake/8° Exhaust
|
| Valve Cant |
4.04° Intake/4.12° Exhaust
|
| Valve Spring Pocket Diameter |
1.750" O.D
|
| Max Valve Spring Pocket Machining |
1.750" O.D
|
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.360"
|
| Flat Mill |
.007" per cc
|
| Angle Mill |
.010" per cc
|
| Note:Angle mills might require a .120" Thick intake gasket. | |
| Minimum Cross Sectional Area |
3.440 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
|
CARB Status: THESE PRODUCTS ARE ILLEGAL TO OPERATE ON ANY PUBLIC HIGHWAY. THIS MEANS ANY PUBLIC PAVED OR UNPAVED ROADWAY OR IN A PUBLIC PARK. THESE PRODUCTS ARE ONLY LEGAL IF USED ON A DEDICATED RACING VEHICLE. VIOLATION ARE SUBJECT TO A MAXIMUM PENALTY OF $37,500 PER VIOLATION PER VEHICLE, REVOCATION OF REGISTRATION BY DMV, LOSS OF USE ON PUBLIC RIGHT OF WAYS AND PROOF OF CORRECTION OF THE TAMPERING. |
|
| Recommended Components: | |
| Intake Port Gasket | |
| Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes. | |
| Exhaust Port Gasket, Fel-Pro #1420 | |
| Head Gasket, 4.500 Bore, Fel-Pro #1018 | |
| Head Bolts, ARP #255-3701 | |
| Head Studs, ARP# 155-4203 12 Point | |
| Head Bolt Washers, Manley | |
| Stud Girdle | |
| 1.75 Shaft Mount Rocker Arms T&D | |
| Suggested Manifold | |
| Suggested Manifold | |
| Spark Plug Starting Range |
Autolite 3922 - Race Gas
|
| Spark Plug Starting Range |
Autolite 3924 - Pump Gas
|
The 315cc heads are AFR's largest and best flowing BBF heads! They feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings, and high quality components throughout with .250 or .625 raised exhaust port locations. These heads are best suited for large displacement high RPM Big Block Ford racing engines or radical “Pro Street” style builds. Please note, due to AFR's valve angle and location, custom pistons or notching existing pistons will be required.
| Included Components | |
| 100% CNC Ported Combustion Chambers | |
| 100% CNC Ported Intake & Exhaust | |
|
Competition 5-Angle Valve Job |
|
| 11/32" Bead Lock Intake Valve 2.300" x 5.250" O.A.L | |
| 11/32" Bead Lock Tulip Exhaust Valve 1.760" x 5.050" O.A.L | |
| PAC Racing #1224 1.625" OD Solid Roller Dual Valve Spring 275 lbs. on seat, .850" maximum lift, Max RPM 7400-7600 Uses #8518 Steel Retainer & #8046 Spring Cup (upgrades available) | |
| 10° Manley Steel Retainers 1.500" O.D x 1.168" I.D x .844" I.D | |
| PAC Racing #1940 1.550" OD Hydraulic Roller Dual Valve Spring 175 lbs. on seat, .725" maximum lift Max RPM 6500-6700; Uses #8511 Steel Retainer | |
| 10° Steel Retainers 1.500" O.D x 1.120" I.D x .705" I.D | |
| 10° 11/32" Beadlock Valve Keepers with lashcap recess | |
| ARP 7/16" Rocker Studs | |
| Adjustable 3/8" Guide Plates | |
| 11/32" Viton Valve Seals | |
| Hardened Valve Spring I.D Locator 1.550" O.D x .705" I.D | |
| Intake Valve Seats 2.450" O.D x 1.950" I.D x .375" Deep | |
| Exhaust Valve Seat 1.900" O.D. x 1.400" I.D. x .375" Deep | |
| 11/32" Exhaust Bronze Valve Guides .502" O.D x 2.25" O.A.L | |
| 315cc Street Head Flow Chart | ||||||||
| .200 | .300 | .400 | .500 | .600 | .650 | .700 | .750 | |
| Int | 162 | 244 | 305 | 355 | 394 | 405 | 414 | 419 |
| Exh | 124 | 166 | 212 | 248 | 267 | 272 | 276 | 276 |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.380", 3/4" radius plate exhaust, 2 1/8" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
315cc
|
| Intake Port Dimension |
2.275" H x 1.850" W x .575 Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
142cc
|
| Exhaust Port Dimension |
1.850"H x 1.600"W
|
| Exhaust Port Location |
.250" Raised
|
| Combustion Chamber Size |
75cc or 85cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
14° Intake/8° Exhaust
|
| Valve Cant |
4.04° Intake/4.12° Exhaust
|
| Valve Spring Pocket Diameter |
1.750" O.D
|
| Max Valve Spring Pocket Machining |
1.750" O.D
|
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.360"
|
| Flat Mill |
.007" per cc
|
| Angle Mill |
.010" per cc
|
| Note:Angle mills might require a .120" Thick intake gasket. | |
| Minimum Cross Sectional Area |
3.440 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
|
CARB Status: THESE PRODUCTS ARE ILLEGAL TO OPERATE ON ANY PUBLIC HIGHWAY. THIS MEANS ANY PUBLIC PAVED OR UNPAVED ROADWAY OR IN A PUBLIC PARK. THESE PRODUCTS ARE ONLY LEGAL IF USED ON A DEDICATED RACING VEHICLE. VIOLATION ARE SUBJECT TO A MAXIMUM PENALTY OF $37,500 PER VIOLATION PER VEHICLE, REVOCATION OF REGISTRATION BY DMV, LOSS OF USE ON PUBLIC RIGHT OF WAYS AND PROOF OF CORRECTION OF THE TAMPERING. |
|
| Recommended Components: | |
| Intake Port Gasket | |
| Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes. | |
| Exhaust Port Gasket, Fel-Pro #1420 | |
| Head Gasket, 4.500 Bore, Fel-Pro #1018 | |
| Head Bolts, ARP #255-3701 | |
| Head Studs, ARP# 155-4203 12 Point | |
| Head Bolt Washers, Manley | |
| Stud Girdle | |
| 1.75 Shaft Mount Rocker Arms T&D | |
| Suggested Manifold | |
| Suggested Manifold | |
| Spark Plug Starting Range |
Autolite 3922 - Race Gas
|
| Spark Plug Starting Range |
Autolite 3924 - Pump Gas
|
AFR's 165cc "Street" cylinder heads are the preferred choice over re-worked factory heads. They feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout, in addition these are the only AFR heads that are compatible with the OEM piston valve relief. Recommended for street, towing, or street/strip engines with displacements up to 351 cubic inches, operating up to 6000 RPM. Legal for 1995 and older emissions controlled vehicles under CARB EO #D-250-3.
| Basic Package Components | |
| 100% CNC Ported Combustion Chambers | |
| 100% CNC Ported Exhaust Ports | |
| 100% CNC Ported Intake Ports | |
|
Competition 5-angle Valve Job |
|
| 8mm Bead Lock Intake Valve, 1.900" x 4.900" O.A.L | |
| 8mm Bead Lock Exhaust Valve, 1.600" x 4.950" O.A.L | |
| Pedestal 8mm Bead Lock Intake Valve, 1.900" x 5.080" O.A.L | |
| Pedestal 8mm Bead Lock Exhaust Valve, 1.600" x 5.100" O.A.L | |
| PAC Racing Spring 1.290" OD Hydraulic Roller Dual Valve Spring, 140 lbs on seat, .600" maximum lift, Max RPM 6300-6500, less than 235* duration, upgraded spring #8019 recommended for higher RPM & larger cams | |
| 7° Steel Retainers 1.245" O.D x .885" I.D x .655" I.D | |
| 7° Bead Lock Valve Keepers | |
| ARP 3/8" Rocker Studs | |
| Adjustable 5/16" Guide Plates | |
| Viton Valve Seals .600" O.D x .495" I.D | |
| Hardened Valve Spring O.D Locator 1.380" O.D x .570" I.D | |
| Ductile Iron Intake Valve Seats 2.131" O.D x 1.680" I.D x .375" Deep | |
| Ductile Iron Exhaust Valve Seats 1.650" O.D x 1.350" I.D x .375" Deep | |
| 8 mm Bronze Valve Guides .502" O.D x 2.100" O.A.L | |
| Thermactor Air Injector Reducer Bushing (5/8"-11 x 7/16"-14) | |
| 165cc Street Head Flow Chart | ||||||
| .200 | .300 | .400 | .500 | .550 | .600 | |
| Int | 135 | 200 | 240 | 251 | 255 | 260 |
| Exh | 122 | 163 | 192 | 208 | 212 | 215 |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.060", 3/4" radius plate exhaust, 1 3/4" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
165cc
|
| Intake Port Dimension |
1.975" H x 1.125" W x 3/8 Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
68cc
|
| Exhaust Port Dimension |
1.355" H x 1.360" W
|
| Exhaust Port Location |
Stock
|
| Combustion Chamber Size |
58cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
20°
|
| Valve Spring Pocket Diameter |
1.460" O.D
|
| Max Valve Spring Pocket Machining |
1.625" O.D
|
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.000"
|
| Flat Mill |
.006" per cc 54cc Maximum
|
| Angle Mill |
.009" per cc 48cc Maximum
|
| Note:Angle mills might require a .120" Thick intake gasket. | |
| Minimum Cross Sectional Area |
1.935 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
| CARB EO# Part #'s 1402 & 1472 |
D-250-3
|
| Head Bolt Diameter 1402 & 1472 |
1/2"
|
| Head Bolt Diameter 1399 |
1/2"
|
| Recommended Components: | |
| Intake Port Gasket | |
| Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes. | |
| Exhaust Port Gasket | |
| Head Gasket, 302/351 Windsor, Fel-Pro #1011-1 | |
| SBF 7/16" Head Bolt Kit, ARP #154-3701 | |
| SBF 7/16" Bolt, Head Stud Kit, ARP #254-4401 | |
| 1/2" Bolt - 7/16" Thread Head Bolts, ARP 254-3708 | |
| Head Bolt Washer Kit, Manley | |
| Stud Girdle (AFR Specific) | |
| Suggested Manifold |
Performer or Performer RPM
|
| Spark Plug Starting Range |
Autolite 3924
|
AFR's 165cc "Street" cylinder heads are the preferred choice over re-worked factory heads. They feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout, in addition these are the only AFR heads that are compatible with the OEM piston valve relief. Recommended for street, towing, or street/strip engines with displacements up to 351 cubic inches, operating up to 6000 RPM. Legal for 1995 and older emissions controlled vehicles under CARB EO #D-250-3.
| Basic Package Components | |
| 100% CNC Ported Combustion Chambers | |
| 100% CNC Ported Exhaust Ports | |
| 100% CNC Ported Intake Ports | |
|
Competition 5-angle Valve Job |
|
| 8mm Bead Lock Intake Valve, 1.900" x 4.900" O.A.L | |
| 8mm Bead Lock Exhaust Valve, 1.600" x 4.950" O.A.L | |
| Pedestal 8mm Bead Lock Intake Valve, 1.900" x 5.080" O.A.L | |
| Pedestal 8mm Bead Lock Exhaust Valve, 1.600" x 5.100" O.A.L | |
| PAC Racing Spring 1.290" OD Hydraulic Roller Dual Valve Spring, 140 lbs on seat, .600" maximum lift, Max RPM 6300-6500, less than 235* duration, upgraded spring #8019 recommended for higher RPM & larger cams | |
| 7° Steel Retainers 1.245" O.D x .885" I.D x .655" I.D | |
| 7° Bead Lock Valve Keepers | |
| ARP 3/8" Rocker Studs | |
| Adjustable 5/16" Guide Plates | |
| Viton Valve Seals .600" O.D x .495" I.D | |
| Hardened Valve Spring O.D Locator 1.380" O.D x .570" I.D | |
| Ductile Iron Intake Valve Seats 2.131" O.D x 1.680" I.D x .375" Deep | |
| Ductile Iron Exhaust Valve Seats 1.650" O.D x 1.350" I.D x .375" Deep | |
| 8 mm Bronze Valve Guides .502" O.D x 2.100" O.A.L | |
| Thermactor Air Injector Reducer Bushing (5/8"-11 x 7/16"-14) | |
| 165cc Street Head Flow Chart | ||||||
| .200 | .300 | .400 | .500 | .550 | .600 | |
| Int | 135 | 200 | 240 | 251 | 255 | 260 |
| Exh | 122 | 163 | 192 | 208 | 212 | 215 |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.060", 3/4" radius plate exhaust, 1 3/4" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
165cc
|
| Intake Port Dimension |
1.975" H x 1.125" W x 3/8 Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
68cc
|
| Exhaust Port Dimension |
1.355" H x 1.360" W
|
| Exhaust Port Location |
Stock
|
| Combustion Chamber Size |
58cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
20°
|
| Valve Spring Pocket Diameter |
1.460" O.D
|
| Max Valve Spring Pocket Machining |
1.625" O.D
|
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.000"
|
| Flat Mill |
.006" per cc 54cc Maximum
|
| Angle Mill |
.009" per cc 48cc Maximum
|
| Note:Angle mills might require a .120" Thick intake gasket. | |
| Minimum Cross Sectional Area |
1.935 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
| CARB EO# Part #'s 1402 & 1472 |
D-250-3
|
| Head Bolt Diameter 1402 & 1472 |
1/2"
|
| Head Bolt Diameter 1399 |
1/2"
|
| Recommended Components: | |
| Intake Port Gasket | |
| Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes. | |
| Exhaust Port Gasket | |
| Head Gasket, 302/351 Windsor, Fel-Pro #1011-1 | |
| SBF 7/16" Head Bolt Kit, ARP #154-3701 | |
| SBF 7/16" Bolt, Head Stud Kit, ARP #254-4401 | |
| 1/2" Bolt - 7/16" Thread Head Bolts, ARP 254-3708 | |
| Head Bolt Washer Kit, Manley | |
| Stud Girdle (AFR Specific) | |
| Suggested Manifold |
Performer or Performer RPM
|
| Spark Plug Starting Range |
Autolite 3924
|
Our small port, high velocity 265cc cylinder heads are a cost effective choice compared to re-worked factory big block chevy cylinder heads. The intake runners and exhaust ports are partially CNC machined, while the combustion chambers are offered with partial or full CNC machining with a bowl blend; this torque monster is capable of flowing 354 CFM at 0.650" lift. Recommended for street, street/strip and towing applications with displacements up to 468 cubic inches operating at or below 6200 RPM.
| Included Components | |
| 75% CNC Ported Exhaust Ports (Bowl Blend), 75% CNC Chambers | |
| 80% CNC Ported Intake Ports (Bowl Blend) | |
|
Competition 5-angle Valve Job |
|
| 11/32" Intake Valve, 2.190" x 5.460" Overall Valve Length | |
| 11/32" Nail Head Exhaust Valve, 1.880" x 5.450" Overall Valve Length | |
| PAC Racing Springs 1.550” OD Solid Roller Dual Valve Drag Race Spring, 220 lbs. on seat, .710” maximum lift, - 260* max recommended duration, Max RPM 7200-7400 (upgrades available) | |
| PAC Racing #1940 1.550” OD Hydraulic Roller Dual Valve Spring, 175 lbs. on seat, .725” maximum lift, Max RPM 6500-6700 | |
| 10° Steel Retainers 1.500" O.D x 1.120"I.D x .705" I.D | |
| 10° 11/32" Valve Keepers with lashcap recess | |
| ARP 7/16" Rocker Studs Intake | |
| ARP 7/16" Rocker Studs Exhaust | |
| Adjustable 3/8" Guide Plates | |
| 11/32" Viton Valve Seals | |
| Hardened Valve Spring Cup 1.655" O.D x 1.565" I.D – For 8002 Spring | |
| Hardened Valve Spring I.D Locator 1.550" O.D x .780" I.D - For 8000 Spring | |
| Intake Valve Seats 2.450" O.D x 1.950" I.D x .375" Deep | |
| Exhaust Valve Seats 2.000" O.D x 1.580" I.D x .375" Deep | |
| 11/32" Intake Bronze Valve Guides .502" O.D x 2.10" O.A.L | |
| 11/32" Exhaust Bronze Valve Guides .502" O.D x 2.25" O.A.L | |
| 265cc As Cast Flow Chart | |||||||
| .200 | .300 | .400 | .500 | .550 | .600 | .650 | |
| Int | 154 | 218 | 278 | 323 | 330 | 333 | 335 |
| Exh | 127 | 164 | 200 | 230 | 250 | 255 | 260 |
| 265cc w/ 100% CNC Chamber Flow Chart | |||||||
| .200 | .300 | .400 | .500 | .550 | .600 | .650 | |
| Int | 164 | 236 | 291 | 326 | 330 | 335 | 340 |
| Exh | 135 | 190 | 230 | 258 | 265 | 274 | 280 |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.310", intake 3/4" radius plate exhaust, 1 7/8" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
265cc
|
| Intake Port Dimension |
2.030"H x 1.830"W x1/2 Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
132cc
|
| Exhaust Port Dimension |
1.770"H x 2.010" W
|
| Exhaust Port Location |
.375" Raised
|
| Combustion Chamber Size (Partial CNC) |
109cc
|
| Combustion Chamber Size (Full CNC) |
112cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
24°/4° Int, 15°/4° Exh
|
| Valve Spring Pocket Diameter |
1.725" O.D
|
| Max Valve Spring Pocket Machining |
1.750" O.D
|
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.125"
|
| Flat Mill |
.006" per cc/ Maximum 102cc as cast or CNC chamber
|
| Angle Mill |
.009" per cc/ Maximum 97cc as cast or CNC chamber
|
| Note: Angle mills might require a .120" Thick intake gasket. | |
| Minimum Cross Sectional Area |
2.640 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
|
CARB Status: THESE PRODUCTS ARE ILLEGAL TO OPERATE ON ANY PUBLIC HIGHWAY. THIS MEANS ANY PUBLIC PAVED OR UNPAVED ROADWAY OR IN A PUBLIC PARK. THESE PRODUCTS ARE ONLY LEGAL IF USED ON A DEDICATED RACING VEHICLE. VIOLATION ARE SUBJECT TO A MAXIMUM PENALTY OF $37,500 PER VIOLATION PER VEHICLE, REVOCATION OF REGISTRATION BY DMV, LOSS OF USE ON PUBLIC RIGHT OF WAYS AND PROOF OF CORRECTION OF THE TAMPERING. |
|
| Recommended Components: | |
| Intake Port Gasket | |
| Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes. | |
| Exhaust Port Gasket | |
| Head Gasket |
Fel-Pro #1017-1 (Mark IV) or AFR #6850
|
| Head Gasket |
Fel-Pro #1047 (Mark V and VI) or AFR #6849
|
| Head Bolts |
ARP 135-3703 (Mark IV) or AFR #6306
|
| Head Bolts |
ARP 135-3707 (Mark V) or AFR #6308
|
| Head Studs |
ARP 235-4713 or AFR #6307
|
| Head Bolt Washers |
Manley, AFR #6320
|
| Stud Girdle, (AFR Specific) | |
| 7/16 Stud Mount Rocker Arms - 1.7 Ratio (For Optimized Geometry) | |
| 1.7 Shaft Mount Rocker Arms T&D | |
| Shaft Mount Rocker Arms |
Crower or Jesel Pro Series
|
| Suggested Manifold |
Victor Jr
|
| Suggested Manifold |
RPM Performer
|
| Suggested Manifold |
Air Gap #7561
|
| Spark Plug Starting Range |
Autolite 3924
|
Our small port, high velocity 265cc cylinder heads are a cost effective choice compared to re-worked factory big block chevy cylinder heads. The intake runners and exhaust ports are partially CNC machined, while the combustion chambers are offered with partial or full CNC machining with a bowl blend; this torque monster is capable of flowing 354 CFM at 0.650" lift. Recommended for street, street/strip and towing applications with displacements up to 468 cubic inches operating at or below 6200 RPM.
| Included Components | |
| 75% CNC Ported Exhaust Ports (Bowl Blend), 75% CNC Chambers | |
| 80% CNC Ported Intake Ports (Bowl Blend) | |
|
Competition 5-angle Valve Job |
|
| 11/32" Intake Valve, 2.190" x 5.460" Overall Valve Length | |
| 11/32" Nail Head Exhaust Valve, 1.880" x 5.450" Overall Valve Length | |
| PAC Racing Springs 1.550” OD Solid Roller Dual Valve Drag Race Spring, 220 lbs. on seat, .710” maximum lift, - 260* max recommended duration, Max RPM 7200-7400 (upgrades available) | |
| PAC Racing #1940 1.550” OD Hydraulic Roller Dual Valve Spring, 175 lbs. on seat, .725” maximum lift, Max RPM 6500-6700 | |
| 10° Steel Retainers 1.500" O.D x 1.120"I.D x .705" I.D | |
| 10° 11/32" Valve Keepers with lashcap recess | |
| ARP 7/16" Rocker Studs Intake | |
| ARP 7/16" Rocker Studs Exhaust | |
| Adjustable 3/8" Guide Plates | |
| 11/32" Viton Valve Seals | |
| Hardened Valve Spring Cup 1.655" O.D x 1.565" I.D – For 8002 Spring | |
| Hardened Valve Spring I.D Locator 1.550" O.D x .780" I.D - For 8000 Spring | |
| Intake Valve Seats 2.450" O.D x 1.950" I.D x .375" Deep | |
| Exhaust Valve Seats 2.000" O.D x 1.580" I.D x .375" Deep | |
| 11/32" Intake Bronze Valve Guides .502" O.D x 2.10" O.A.L | |
| 11/32" Exhaust Bronze Valve Guides .502" O.D x 2.25" O.A.L | |
| 265cc As Cast Flow Chart | |||||||
| .200 | .300 | .400 | .500 | .550 | .600 | .650 | |
| Int | 154 | 218 | 278 | 323 | 330 | 333 | 335 |
| Exh | 127 | 164 | 200 | 230 | 250 | 255 | 260 |
| 265cc w/ 100% CNC Chamber Flow Chart | |||||||
| .200 | .300 | .400 | .500 | .550 | .600 | .650 | |
| Int | 164 | 236 | 291 | 326 | 330 | 335 | 340 |
| Exh | 135 | 190 | 230 | 258 | 265 | 274 | 280 |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.310", intake 3/4" radius plate exhaust, 1 7/8" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
265cc
|
| Intake Port Dimension |
2.030"H x 1.830"W x1/2 Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
132cc
|
| Exhaust Port Dimension |
1.770"H x 2.010" W
|
| Exhaust Port Location |
.375" Raised
|
| Combustion Chamber Size (Partial CNC) |
109cc
|
| Combustion Chamber Size (Full CNC) |
112cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
24°/4° Int, 15°/4° Exh
|
| Valve Spring Pocket Diameter |
1.725" O.D
|
| Max Valve Spring Pocket Machining |
1.750" O.D
|
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.125"
|
| Flat Mill |
.006" per cc/ Maximum 102cc as cast or CNC chamber
|
| Angle Mill |
.009" per cc/ Maximum 97cc as cast or CNC chamber
|
| Note: Angle mills might require a .120" Thick intake gasket. | |
| Minimum Cross Sectional Area |
2.640 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
|
CARB Status: THESE PRODUCTS ARE ILLEGAL TO OPERATE ON ANY PUBLIC HIGHWAY. THIS MEANS ANY PUBLIC PAVED OR UNPAVED ROADWAY OR IN A PUBLIC PARK. THESE PRODUCTS ARE ONLY LEGAL IF USED ON A DEDICATED RACING VEHICLE. VIOLATION ARE SUBJECT TO A MAXIMUM PENALTY OF $37,500 PER VIOLATION PER VEHICLE, REVOCATION OF REGISTRATION BY DMV, LOSS OF USE ON PUBLIC RIGHT OF WAYS AND PROOF OF CORRECTION OF THE TAMPERING. |
|
| Recommended Components: | |
| Intake Port Gasket | |
| Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes. | |
| Exhaust Port Gasket | |
| Head Gasket |
Fel-Pro #1017-1 (Mark IV) or AFR #6850
|
| Head Gasket |
Fel-Pro #1047 (Mark V and VI) or AFR #6849
|
| Head Bolts |
ARP 135-3703 (Mark IV) or AFR #6306
|
| Head Bolts |
ARP 135-3707 (Mark V) or AFR #6308
|
| Head Studs |
ARP 235-4713 or AFR #6307
|
| Head Bolt Washers |
Manley, AFR #6320
|
| Stud Girdle, (AFR Specific) | |
| 7/16 Stud Mount Rocker Arms - 1.7 Ratio (For Optimized Geometry) | |
| 1.7 Shaft Mount Rocker Arms T&D | |
| Shaft Mount Rocker Arms |
Crower or Jesel Pro Series
|
| Suggested Manifold |
Victor Jr
|
| Suggested Manifold |
RPM Performer
|
| Suggested Manifold |
Air Gap #7561
|
| Spark Plug Starting Range |
Autolite 3924
|
AFR's 227cc "Race Ready" and "Competition" heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. This head features 60/40 valve spacing and requires shaft mount rocker arms for optimum valve train geometry (can be used with .050 offset intake rockers for drag race only applications).
| Included Components | |
| 100% CNC Ported Combustion Chambers | |
| 100% CNC Ported Exhaust Ports | |
| 100% CNC Ported Intake Ports | |
|
Competition 5-angle Valve Job |
|
| 8mm Bead Lock Intake Valve, 2.100" x 5.000" Overall Valve Length | |
| 8mm Bead Lock Exhaust Valve, 1.600" x 5.030" Overall Valve Length | |
| PAC Racing Spring 1.550" OD Solid Roller Dual Valve Spring, 220 lbs on seat, .710" maximum lift, - 260* max recommended duration, Max RPM 7200-7400 | |
| 10° Steel Retainers 1.500" O.D x 1.120" I.D x .705" I.D | |
| 10° Bead Lock Valve Keepers with lashcap recess | |
| ARP 7/16" Rocker Studs | |
| Adjustable 5/16" Guide Plates | |
| Viton Valve Seals .600" O.D x .495" I.D | |
| Hardened Valve Spring I.D Locator 1.550” O.D x .780” I.D | |
| Ductile Iron Intake Valve Seats 2.200" O.D x 1.750" I.D x.375" Deep | |
| Ductile Iron Exhaust Valve Seats 1.696" O.D x 1.325" I.D x .305" Deep | |
| 8mm Bronze Valve Guides .502" O.D x 2.100" O.A.L | |
| 227cc Race Ready™ Flow Chart | ||||||||
| .200 | .300 | .400 | .500 | .550 | .600 | .650 | .700 | |
| Int | 148 | 210 | 261 | 296 | 304 | 312 | 315 | 318 |
| Exh | 116 | 155 | 204 | 220 | 225 | 229 | 233 | 237 |
| 227cc Competition Flow Chart | |||||||||
| .200 | .300 | .400 | .500 | .550 | .600 | .650 | .700 | .750 | |
| Int | 152 | 212 | 260 | 292 | 310 | 316 | 322 | 327 | 329 |
| Exh | 120 | 160 | 214 | 230 | 234 | 238 | 241 | 243 | 245 |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.155", intake 3/4" radius plate exhaust, 1 7/8" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
227cc
|
| Intake Port Dimension |
2.200" H x 1.290" W 5/16 Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
80cc
|
| Exhaust Port Dimension |
1.430" H x 1.540" W
|
| Exhaust Port Location |
.250" Raised
|
| Combustion Chamber Size |
65cc or 75cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
23°
|
| Valve Spring Pocket Diameter |
1.580" O.D
|
| Max Valve Spring Pocket Machining |
1.680" O.D
|
| Warning: Do not machine spring pad any deeper. | |
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.000"
|
| Flat Mill |
.006" per cc 60cc Maximum
|
| Angle Mill |
.009" per cc 55cc Maximum
|
| Note: Angle mills might require .120" Thick intake gasket. | |
| Minimum Cross Sectional Area |
2.340 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
|
CARB Status: THESE PRODUCTS ARE ILLEGAL TO OPERATE ON ANY PUBLIC HIGHWAY. THIS MEANS ANY PUBLIC PAVED OR UNPAVED ROADWAY OR IN A PUBLIC PARK. THESE PRODUCTS ARE ONLY LEGAL IF USED ON A DEDICATED RACING VEHICLE. VIOLATION ARE SUBJECT TO A MAXIMUM PENALTY OF $37,500 PER VIOLATION PER VEHICLE, REVOCATION OF REGISTRATION BY DMV, LOSS OF USE ON PUBLIC RIGHT OF WAYS AND PROOF OF CORRECTION OF THE TAMPERING. |
|
| Recommended Components: | |
| 1.5 T&D Shaft Mount w/ .450" off-set | |
| 1.6 T&D Shaft Mount w/ .450" off-set | |
| 1.6 Stud Mount Rocker Arms, Hardland Sharp .050 offset | |
| 1.5 Stud Mount Rocker Arms, Hardland Sharp .050 offset | |
| Intake Gasket | |
| Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes. | |
| Exhaust Port Gasket | |
| Head Gasket, 350cid Fel-Pro #1003 | |
| Head Gasket, 400cid Fel-Pro #1014 | |
| SB Chevy Head Bolt Kit, ARP #134-3701 | |
| SB Chevy Head Stud Kit, 12 Point Nuts, ARP #234-4301 | |
| Head Bolt Washers, Manley | |
| Stud Girdle AFR Offset | |
| Suggested Manifold | |
| Suggested Manifold | |
| Spark Plug Starting Range |
Autolite 3922
|
AFR's 227cc "Race Ready" and "Competition" heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. This head features 60/40 valve spacing and requires shaft mount rocker arms for optimum valve train geometry (can be used with .050 offset intake rockers for drag race only applications).
| Included Components | |
| 100% CNC Ported Combustion Chambers | |
| 100% CNC Ported Exhaust Ports | |
| 100% CNC Ported Intake Ports | |
|
Competition 5-angle Valve Job |
|
| 8mm Bead Lock Intake Valve, 2.100" x 5.000" Overall Valve Length | |
| 8mm Bead Lock Exhaust Valve, 1.600" x 5.030" Overall Valve Length | |
| PAC Racing Spring 1.550" OD Solid Roller Dual Valve Spring, 220 lbs on seat, .710" maximum lift, - 260* max recommended duration, Max RPM 7200-7400 | |
| 10° Steel Retainers 1.500" O.D x 1.120" I.D x .705" I.D | |
| 10° Bead Lock Valve Keepers with lashcap recess | |
| ARP 7/16" Rocker Studs | |
| Adjustable 5/16" Guide Plates | |
| Viton Valve Seals .600" O.D x .495" I.D | |
| Hardened Valve Spring I.D Locator 1.550” O.D x .780” I.D | |
| Ductile Iron Intake Valve Seats 2.200" O.D x 1.750" I.D x.375" Deep | |
| Ductile Iron Exhaust Valve Seats 1.696" O.D x 1.325" I.D x .305" Deep | |
| 8mm Bronze Valve Guides .502" O.D x 2.100" O.A.L | |
| 227cc Race Ready™ Flow Chart | ||||||||
| .200 | .300 | .400 | .500 | .550 | .600 | .650 | .700 | |
| Int | 148 | 210 | 261 | 296 | 304 | 312 | 315 | 318 |
| Exh | 116 | 155 | 204 | 220 | 225 | 229 | 233 | 237 |
| 227cc Competition Flow Chart | |||||||||
| .200 | .300 | .400 | .500 | .550 | .600 | .650 | .700 | .750 | |
| Int | 152 | 212 | 260 | 292 | 310 | 316 | 322 | 327 | 329 |
| Exh | 120 | 160 | 214 | 230 | 234 | 238 | 241 | 243 | 245 |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.155", intake 3/4" radius plate exhaust, 1 7/8" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
227cc
|
| Intake Port Dimension |
2.200" H x 1.290" W 5/16 Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
80cc
|
| Exhaust Port Dimension |
1.430" H x 1.540" W
|
| Exhaust Port Location |
.250" Raised
|
| Combustion Chamber Size |
65cc or 75cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
23°
|
| Valve Spring Pocket Diameter |
1.580" O.D
|
| Max Valve Spring Pocket Machining |
1.680" O.D
|
| Warning: Do not machine spring pad any deeper. | |
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.000"
|
| Flat Mill |
.006" per cc 60cc Maximum
|
| Angle Mill |
.009" per cc 55cc Maximum
|
| Note: Angle mills might require .120" Thick intake gasket. | |
| Minimum Cross Sectional Area |
2.340 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
|
CARB Status: THESE PRODUCTS ARE ILLEGAL TO OPERATE ON ANY PUBLIC HIGHWAY. THIS MEANS ANY PUBLIC PAVED OR UNPAVED ROADWAY OR IN A PUBLIC PARK. THESE PRODUCTS ARE ONLY LEGAL IF USED ON A DEDICATED RACING VEHICLE. VIOLATION ARE SUBJECT TO A MAXIMUM PENALTY OF $37,500 PER VIOLATION PER VEHICLE, REVOCATION OF REGISTRATION BY DMV, LOSS OF USE ON PUBLIC RIGHT OF WAYS AND PROOF OF CORRECTION OF THE TAMPERING. |
|
| Recommended Components: | |
| 1.5 T&D Shaft Mount w/ .450" off-set | |
| 1.6 T&D Shaft Mount w/ .450" off-set | |
| 1.6 Stud Mount Rocker Arms, Hardland Sharp .050 offset | |
| 1.5 Stud Mount Rocker Arms, Hardland Sharp .050 offset | |
| Intake Gasket | |
| Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes. | |
| Exhaust Port Gasket | |
| Head Gasket, 350cid Fel-Pro #1003 | |
| Head Gasket, 400cid Fel-Pro #1014 | |
| SB Chevy Head Bolt Kit, ARP #134-3701 | |
| SB Chevy Head Stud Kit, 12 Point Nuts, ARP #234-4301 | |
| Head Bolt Washers, Manley | |
| Stud Girdle AFR Offset | |
| Suggested Manifold | |
| Suggested Manifold | |
| Spark Plug Starting Range |
Autolite 3922
|
Our 235cc "Competition" heads come with 100% CNC machined intake runners, exhaust ports and combustion chambers. Equipped with Titanium retainers and high quality components, featuring a 60/40 valve spacing which requires shaft mounted rocker arms for optimum valve train geometry (can be used with .050 offset intake rockers for drag race only applications).
| Included Components | ||
| 100% CNC Ported Combustion Chambers | ||
| 100% CNC Ported Exhaust Ports | ||
| 100% CNC Ported Intake Ports | ||
|
Competition 5-angle Valve Job |
||
| 8mm Bead Lock Intake Valve, 2.125" x 5.00" long O.A.L. | ||
| 8mm Bead Lock Exhaust Valve, 1.600" x 5.030" long O.A.L. | ||
| PAC Racing Springs 1.550" OD Solid Roller Dual Drag Race Spring, 250 lbs on seat, .800" maximum lift, Max RPM 8000-8200 | ||
| 10° Titanium Retainers 1.500” O.D x 1.120” I.D x .705” I.D | ||
| 10° Bead Lock Valve Keepers with lashcap recess | ||
| ARP 7/16" Rocker Studs | ||
| Adjustable 5/16" Guide Plates | ||
| Viton Valve Seals .600" O.D x .495" I.D | ||
| Hardened Valve Spring I.D Locator 1.550” O.D x .780” I.D | ||
| Ductile Iron Intake Valve Seats 2.200" O.D x 1.750" I.D x.375" Deep | ||
| Ductile Iron Exhaust Valve Seats 1.696" O.D x 1.325" I.D x .305" Deep | ||
| 8mm Bronze Valve Guides .502" O.D x 2.100" O.A.L | ||
| 235cc Competition Flow Chart | |||||||||
| .200 | .300 | .400 | .500 | .550 | .600 | .650 | .700 | .800 | |
| Int | 159 | 221 | 261 | 295 | 311 | 318 | 327 | 331 | 336 |
| Exh | 120 | 165 | 214 | 228 | 237 | 238 | 243 | 245 | 250 |
Test conducted at 28" of water (pressure) on Superflow 600
Bore Size: 4.155", intake 3/4" radius plate exhaust, 1 7/8" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
235cc
|
| Intake Port Dimension |
2.200" H x 1.290" W 5/16 Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
80cc
|
| Exhaust Port Dimension |
1.430" H x 1.540" W
|
| Exhaust Port Location |
.250" Raised
|
| Combustion Chamber Size |
70cc or 80cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
23°
|
| Valve Spring Pocket Diameter |
1.580" O.D
|
| Max Valve Spring Pocket Machining |
1.680" O.D
|
| Warning: Do not machine spring pad any deeper. | |
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.000"
|
| Flat Mill |
.006" per cc 65cc Maximum
|
| Angle Mill |
.009" per cc 60cc Maximum
|
| Note: Angle mills might require .120" Thick intake gasket. | |
| Minimum Cross Sectional Area |
2.470 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
|
CARB Status: THESE PRODUCTS ARE ILLEGAL TO OPERATE ON ANY PUBLIC HIGHWAY. THIS MEANS ANY PUBLIC PAVED OR UNPAVED ROADWAY OR IN A PUBLIC PARK. THESE PRODUCTS ARE ONLY LEGAL IF USED ON A DEDICATED RACING VEHICLE. VIOLATION ARE SUBJECT TO A MAXIMUM PENALTY OF $37,500 PER VIOLATION PER VEHICLE, REVOCATION OF REGISTRATION BY DMV, LOSS OF USE ON PUBLIC RIGHT OF WAYS AND PROOF OF CORRECTION OF THE TAMPERING. |
|
| Recommended Components: | |
| 1.5 T&D Shaft Mount w/ .450" off-set | |
| 1.6 T&D Shaft Mount w/ .450" off-set | |
| 1.6 Stud Mount Rocker Arms, Hardland Sharp .050 offset | |
| 1.5 Stud Mount Rocker Arms, Hardland Sharp .050 offset | |
| Intake Gasket | |
| Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes. | |
| Exhaust Port Gasket | |
| Head Gasket, 350cid Fel-Pro #1004 | |
| Head Gasket, 400cid Fel-Pro #1014 | |
| SB Chevy Head Bolt Kit, ARP #134-3701 | |
| SB Chevy Head Stud Kit, 12 Point Nuts, ARP #234-4301 | |
| Head Bolt Washers, Manley | |
| Stud Girdle AFR Offset | |
| Suggested Manifold | |
| Suggested Manifold | |
| Spark Plug Starting Range |
Autolite 3922
|
Our 235cc "Competition" heads come with 100% CNC machined intake runners, exhaust ports and combustion chambers. Equipped with Titanium retainers and high quality components, featuring a 60/40 valve spacing which requires shaft mounted rocker arms for optimum valve train geometry (can be used with .050 offset intake rockers for drag race only applications).
| Included Components | ||
| 100% CNC Ported Combustion Chambers | ||
| 100% CNC Ported Exhaust Ports | ||
| 100% CNC Ported Intake Ports | ||
|
Competition 5-angle Valve Job |
||
| 8mm Bead Lock Intake Valve, 2.125" x 5.00" long O.A.L. | ||
| 8mm Bead Lock Exhaust Valve, 1.600" x 5.030" long O.A.L. | ||
| PAC Racing Springs 1.550" OD Solid Roller Dual Drag Race Spring, 250 lbs on seat, .800" maximum lift, Max RPM 8000-8200 | ||
| 10° Titanium Retainers 1.500” O.D x 1.120” I.D x .705” I.D | ||
| 10° Bead Lock Valve Keepers with lashcap recess | ||
| ARP 7/16" Rocker Studs | ||
| Adjustable 5/16" Guide Plates | ||
| Viton Valve Seals .600" O.D x .495" I.D | ||
| Hardened Valve Spring I.D Locator 1.550” O.D x .780” I.D | ||
| Ductile Iron Intake Valve Seats 2.200" O.D x 1.750" I.D x.375" Deep | ||
| Ductile Iron Exhaust Valve Seats 1.696" O.D x 1.325" I.D x .305" Deep | ||
| 8mm Bronze Valve Guides .502" O.D x 2.100" O.A.L | ||
| 235cc Competition Flow Chart | |||||||||
| .200 | .300 | .400 | .500 | .550 | .600 | .650 | .700 | .800 | |
| Int | 159 | 221 | 261 | 295 | 311 | 318 | 327 | 331 | 336 |
| Exh | 120 | 165 | 214 | 228 | 237 | 238 | 243 | 245 | 250 |
Test conducted at 28" of water (pressure) on Superflow 600
Bore Size: 4.155", intake 3/4" radius plate exhaust, 1 7/8" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
235cc
|
| Intake Port Dimension |
2.200" H x 1.290" W 5/16 Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
80cc
|
| Exhaust Port Dimension |
1.430" H x 1.540" W
|
| Exhaust Port Location |
.250" Raised
|
| Combustion Chamber Size |
70cc or 80cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
23°
|
| Valve Spring Pocket Diameter |
1.580" O.D
|
| Max Valve Spring Pocket Machining |
1.680" O.D
|
| Warning: Do not machine spring pad any deeper. | |
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.000"
|
| Flat Mill |
.006" per cc 65cc Maximum
|
| Angle Mill |
.009" per cc 60cc Maximum
|
| Note: Angle mills might require .120" Thick intake gasket. | |
| Minimum Cross Sectional Area |
2.470 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
|
CARB Status: THESE PRODUCTS ARE ILLEGAL TO OPERATE ON ANY PUBLIC HIGHWAY. THIS MEANS ANY PUBLIC PAVED OR UNPAVED ROADWAY OR IN A PUBLIC PARK. THESE PRODUCTS ARE ONLY LEGAL IF USED ON A DEDICATED RACING VEHICLE. VIOLATION ARE SUBJECT TO A MAXIMUM PENALTY OF $37,500 PER VIOLATION PER VEHICLE, REVOCATION OF REGISTRATION BY DMV, LOSS OF USE ON PUBLIC RIGHT OF WAYS AND PROOF OF CORRECTION OF THE TAMPERING. |
|
| Recommended Components: | |
| 1.5 T&D Shaft Mount w/ .450" off-set | |
| 1.6 T&D Shaft Mount w/ .450" off-set | |
| 1.6 Stud Mount Rocker Arms, Hardland Sharp .050 offset | |
| 1.5 Stud Mount Rocker Arms, Hardland Sharp .050 offset | |
| Intake Gasket | |
| Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes. | |
| Exhaust Port Gasket | |
| Head Gasket, 350cid Fel-Pro #1004 | |
| Head Gasket, 400cid Fel-Pro #1014 | |
| SB Chevy Head Bolt Kit, ARP #134-3701 | |
| SB Chevy Head Stud Kit, 12 Point Nuts, ARP #234-4301 | |
| Head Bolt Washers, Manley | |
| Stud Girdle AFR Offset | |
| Suggested Manifold | |
| Suggested Manifold | |
| Spark Plug Starting Range |
Autolite 3922
|
Our largest and most powerful 60/40 head for the small block Chevy features 100% CNC machined intake runners, exhaust ports and combustion chambers. Capable of flowing 350 CFM at 0.800" of lift these heads come equipped with Titanium retainers and high quality components throughout, the 60/40 valve spacing which requires shaft mounted rocker arms for optimum valve train geometry and extra machining for 3/8" pushrod clearance. NPP stands for "no pushrod pinch."
| Included Components | |
| 100% CNC Ported Combustion Chambers | |
| 100% CNC Ported Exhaust Ports | |
| 100% CNC Ported Intake Ports | |
|
Competition 5-angle Valve Job |
|
| 8mm Bead Lock Intake Valve, 2.125" x 5.000" Overall Valve Length | |
| 8mm Bead Lock Exhaust Valve, 1.600" x 5.030" Overall Valve Length | |
| PAC #1225 Racing Springs 1.550” OD Solid Roller Dual Valve Drag Race Spring, 250 lbs. on seat, .800” max lift, Max RPM 8000-8200 | |
| 10° Titanium Retainers 1.500” O.D x 1.120” I.D x .705” I.D | |
| 10° Bead Lock Valve Keepers with lashcap recess | |
| Viton Valve Seals .600" O.D x .495" I.D | |
| Hardened Valve Spring I.D Locator 1.550” O.D x .780” I.D | |
| Ductile Iron Intake Valve Seats 2.200" O.D x 1.750" I.D x.375" Deep | |
| Ductile Iron Exhaust Valve Seats 1.696" O.D x 1.325" I.D x .305" Deep | |
| 8mm Bronze Valve Guides .502" O.D x 2.100" O.A.L | |
Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes.
| 245cc Competition Flow Chart | |||||||||
| .200 | .300 | .400 | .500 | .550 | .600 | .650 | .700 | .800 | |
| Int | 161 | 224 | 261 | 301 | 311 | 320 | 331 | 337 | 345 |
| Exh | 128 | 165 | 214 | 228 | 237 | 238 | 243 | 245 | 250 |
Test conducted at 28" of water (pressure) on Superflow 600
Bore Size: 4.155", intake 3/4" radius plate exhaust, 1 7/8" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
245cc
|
| Intake Port Dimension |
2.200" H x 1.300" W 7/16 Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
80cc
|
| Exhaust Port Dimension |
1.465" H x 1.570" W
|
| Exhaust Port Location |
.250" Raised
|
| Combustion Chamber Size |
70cc or 80cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
23°
|
| Valve Spring Pocket Diameter |
1.580" O.D
|
| Max Valve Spring Pocket Machining |
1.680" O.D
|
| Warning: Do not machine spring pad any deeper. | |
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.000"
|
| Flat Mill |
.006" per cc 65cc Maximum
|
| Angle Mill |
.009" per cc 60cc Maximum
|
| Note: Angle mills might require .120" Thick intake gasket. | |
| Minimum Cross Sectional Area |
2.730 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
|
CARB Status: THESE PRODUCTS ARE ILLEGAL TO OPERATE ON ANY PUBLIC HIGHWAY. THIS MEANS ANY PUBLIC PAVED OR UNPAVED ROADWAY OR IN A PUBLIC PARK. THESE PRODUCTS ARE ONLY LEGAL IF USED ON A DEDICATED RACING VEHICLE. VIOLATION ARE SUBJECT TO A MAXIMUM PENALTY OF $37,500 PER VIOLATION PER VEHICLE, REVOCATION OF REGISTRATION BY DMV, LOSS OF USE ON PUBLIC RIGHT OF WAYS AND PROOF OF CORRECTION OF THE TAMPERING. |
|
| Recommended Components: | |
| 1.5 T&D Shaft Mount w/ .450" off-set (requires .180 offset lifters) | |
| 1.6 T&D Shaft Mount w/ .450" off-set (requires .180 offset lifters) | |
| 1.6 T&D Shaft Mount w/ .550" off-set | |
| Intake Gasket | |
| Exhaust Port Gasket | |
| Head Gasket, 350cid Fel-Pro #1004 | |
| Head Gasket, 400cid Fel-Pro #1014 | |
| SB Chevy Head Bolt Kit, ARP #134-3701 | |
| SB Chevy Head Stud Kit, 12 Point Nuts, ARP #234-4301 | |
| Head Bolt Washers, Manley | |
| Suggested Manifold | |
| Suggested Manifold | |
| Spark Plug Starting Range |
Autolite 3922
|
Our largest and most powerful 60/40 head for the small block Chevy features 100% CNC machined intake runners, exhaust ports and combustion chambers. Capable of flowing 350 CFM at 0.800" of lift these heads come equipped with Titanium retainers and high quality components throughout, the 60/40 valve spacing which requires shaft mounted rocker arms for optimum valve train geometry and extra machining for 3/8" pushrod clearance. NPP stands for "no pushrod pinch."
| Included Components | |
| 100% CNC Ported Combustion Chambers | |
| 100% CNC Ported Exhaust Ports | |
| 100% CNC Ported Intake Ports | |
|
Competition 5-angle Valve Job |
|
| 8mm Bead Lock Intake Valve, 2.125" x 5.000" Overall Valve Length | |
| 8mm Bead Lock Exhaust Valve, 1.600" x 5.030" Overall Valve Length | |
| PAC #1225 Racing Springs 1.550” OD Solid Roller Dual Valve Drag Race Spring, 250 lbs. on seat, .800” max lift, Max RPM 8000-8200 | |
| 10° Titanium Retainers 1.500” O.D x 1.120” I.D x .705” I.D | |
| 10° Bead Lock Valve Keepers with lashcap recess | |
| Viton Valve Seals .600" O.D x .495" I.D | |
| Hardened Valve Spring I.D Locator 1.550” O.D x .780” I.D | |
| Ductile Iron Intake Valve Seats 2.200" O.D x 1.750" I.D x.375" Deep | |
| Ductile Iron Exhaust Valve Seats 1.696" O.D x 1.325" I.D x .305" Deep | |
| 8mm Bronze Valve Guides .502" O.D x 2.100" O.A.L | |
Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes.
| 245cc Competition Flow Chart | |||||||||
| .200 | .300 | .400 | .500 | .550 | .600 | .650 | .700 | .800 | |
| Int | 161 | 224 | 261 | 301 | 311 | 320 | 331 | 337 | 345 |
| Exh | 128 | 165 | 214 | 228 | 237 | 238 | 243 | 245 | 250 |
Test conducted at 28" of water (pressure) on Superflow 600
Bore Size: 4.155", intake 3/4" radius plate exhaust, 1 7/8" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
245cc
|
| Intake Port Dimension |
2.200" H x 1.300" W 7/16 Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
80cc
|
| Exhaust Port Dimension |
1.465" H x 1.570" W
|
| Exhaust Port Location |
.250" Raised
|
| Combustion Chamber Size |
70cc or 80cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
23°
|
| Valve Spring Pocket Diameter |
1.580" O.D
|
| Max Valve Spring Pocket Machining |
1.680" O.D
|
| Warning: Do not machine spring pad any deeper. | |
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.000"
|
| Flat Mill |
.006" per cc 65cc Maximum
|
| Angle Mill |
.009" per cc 60cc Maximum
|
| Note: Angle mills might require .120" Thick intake gasket. | |
| Minimum Cross Sectional Area |
2.730 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
|
CARB Status: THESE PRODUCTS ARE ILLEGAL TO OPERATE ON ANY PUBLIC HIGHWAY. THIS MEANS ANY PUBLIC PAVED OR UNPAVED ROADWAY OR IN A PUBLIC PARK. THESE PRODUCTS ARE ONLY LEGAL IF USED ON A DEDICATED RACING VEHICLE. VIOLATION ARE SUBJECT TO A MAXIMUM PENALTY OF $37,500 PER VIOLATION PER VEHICLE, REVOCATION OF REGISTRATION BY DMV, LOSS OF USE ON PUBLIC RIGHT OF WAYS AND PROOF OF CORRECTION OF THE TAMPERING. |
|
| Recommended Components: | |
| 1.5 T&D Shaft Mount w/ .450" off-set (requires .180 offset lifters) | |
| 1.6 T&D Shaft Mount w/ .450" off-set (requires .180 offset lifters) | |
| 1.6 T&D Shaft Mount w/ .550" off-set | |
| Intake Gasket | |
| Exhaust Port Gasket | |
| Head Gasket, 350cid Fel-Pro #1004 | |
| Head Gasket, 400cid Fel-Pro #1014 | |
| SB Chevy Head Bolt Kit, ARP #134-3701 | |
| SB Chevy Head Stud Kit, 12 Point Nuts, ARP #234-4301 | |
| Head Bolt Washers, Manley | |
| Suggested Manifold | |
| Suggested Manifold | |
| Spark Plug Starting Range |
Autolite 3922
|
AFR's 210cc "Race Ready" and "Competition" heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. Recommended for race applications and aggressive street/ strip builds up to 400 cubic inches, operating up to 6500- 6800 RPM.
| Included Components | |
| 100% CNC Ported Combustion Chambers | |
| 100% CNC Ported Exhaust Ports | |
| 100% CNC Ported Intake Ports | |
|
Competition 5-angle Valve Job |
|
| 8mm Bead Lock Intake Valve, 2.080" x 5.000" Overall Valve Length | |
| 8mm Bead Lock Exhaust Valve, 1.600" x 5.030" Overall Valve Length | |
| PAC Racing Spring 1.550" OD Solid Roller Dual Valve Spring, 220 lbs on seat, .710" maximum lift, - 260* max recommended duration, Max RPM 7200-7400 | |
| 10° Steel Retainers 1.500" O.D x 1.120" I.D x .705" I.D | |
| 10° Bead Lock Valve Keepers | |
| ARP 7/16" Rocker Studs | |
| Adjustable 5/16" Guide Plates | |
| Viton Valve Seals .600" O.D x .495" I.D | |
| Hardened Valve Spring I.D Locator 1.550” O.D x .780” I.D | |
| Ductile Iron Intake Valve Seats 2.200" O.D x 1.750" I.D x .375" Deep | |
| Ductile Iron Exhaust Valve Seats 1.696" O.D x 1.325" I.D x .305" Deep | |
| 8 mm Bronze Valve Guides .502" O.D x 2.100" O.A.L | |
| 210cc Race Ready™ Head Flow Chart | |||||||
| .200 | .300 | .400 | .500 | .550 | .600 | .650 | |
| Int | 145 | 199 | 248 | 285 | 301 | 309 | 311 |
| Exh | 110 | 158 | 192 | 210 | 214 | 220 | 222 |
| 210cc Competition Head Flow Chart | |||||||
| .200 | .300 | .400 | .500 | .550 | .600 | .650 | |
| Int | 147 | 201 | 257 | 296 | 310 | 318 | 322 |
| Exh | 120 | 160 | 214 | 225 | 229 | 235 | 237 |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.060", intake 3/4" radius plate exhaust, 1 3/4" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
210cc
|
| Intake Port Dimension |
2.200" H x 1.310" W x 3/8 Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
80cc
|
| Exhaust Port Dimension |
1.420" H x 1.545" W
|
| Exhaust Port Location |
.250" Raised
|
| Note: Angle mills might require .120" Thick intake gasket. | |
| Combustion Chamber Size |
65cc or 75cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
23°
|
| Valve Spring Pocket Diameter |
1.580" O.D
|
| Max Valve Spring Pocket Machining |
1.750" O.D
|
| Warning: Do not machine spring pad any deeper. | |
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.000"
|
| Flat Mill |
.006" per cc 60cc Maximum
|
| Angle Mill |
.009" per cc 55cc Maximum
|
| Note: Angle mills might require .120" Thick intake gasket. | |
| Minimum Cross Sectional Area |
Race Ready: 2.100 sp in, Comp 2.115 sq. in
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
|
CARB Status: This product is not legal for sale or use on emission-controlled vehicles and intended for dedicated race vehicles only. |
|
| Recommended Components: | |
| Intake Gasket | |
| Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes. | |
| Exhaust Port Gasket | |
| Head Gasket, 350cid Fel-Pro #1003 | |
| Head Gasket, 400cid Fel-Pro #1014 | |
| SB Chevy Head Bolt Kit, ARP #134-3701 | |
| SB Chevy Head Stud Kit, 12 Point Nuts, ARP #234-4301 | |
| Head Bolt Washers, Manley | |
| AFR Stud Girdle | |
| Suggested Manifold | |
| Suggested Manifold | |
| Spark Plug Starting Range |
Autolite 3922
|
AFR's 210cc "Race Ready" and "Competition" heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. Recommended for race applications and aggressive street/ strip builds up to 400 cubic inches, operating up to 6500- 6800 RPM.
| Included Components | |
| 100% CNC Ported Combustion Chambers | |
| 100% CNC Ported Exhaust Ports | |
| 100% CNC Ported Intake Ports | |
|
Competition 5-angle Valve Job |
|
| 8mm Bead Lock Intake Valve, 2.080" x 5.000" Overall Valve Length | |
| 8mm Bead Lock Exhaust Valve, 1.600" x 5.030" Overall Valve Length | |
| PAC Racing Spring 1.550" OD Solid Roller Dual Valve Spring, 220 lbs on seat, .710" maximum lift, - 260* max recommended duration, Max RPM 7200-7400 | |
| 10° Steel Retainers 1.500" O.D x 1.120" I.D x .705" I.D | |
| 10° Bead Lock Valve Keepers | |
| ARP 7/16" Rocker Studs | |
| Adjustable 5/16" Guide Plates | |
| Viton Valve Seals .600" O.D x .495" I.D | |
| Hardened Valve Spring I.D Locator 1.550” O.D x .780” I.D | |
| Ductile Iron Intake Valve Seats 2.200" O.D x 1.750" I.D x .375" Deep | |
| Ductile Iron Exhaust Valve Seats 1.696" O.D x 1.325" I.D x .305" Deep | |
| 8 mm Bronze Valve Guides .502" O.D x 2.100" O.A.L | |
| 210cc Race Ready™ Head Flow Chart | |||||||
| .200 | .300 | .400 | .500 | .550 | .600 | .650 | |
| Int | 145 | 199 | 248 | 285 | 301 | 309 | 311 |
| Exh | 110 | 158 | 192 | 210 | 214 | 220 | 222 |
| 210cc Competition Head Flow Chart | |||||||
| .200 | .300 | .400 | .500 | .550 | .600 | .650 | |
| Int | 147 | 201 | 257 | 296 | 310 | 318 | 322 |
| Exh | 120 | 160 | 214 | 225 | 229 | 235 | 237 |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.060", intake 3/4" radius plate exhaust, 1 3/4" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
210cc
|
| Intake Port Dimension |
2.200" H x 1.310" W x 3/8 Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
80cc
|
| Exhaust Port Dimension |
1.420" H x 1.545" W
|
| Exhaust Port Location |
.250" Raised
|
| Note: Angle mills might require .120" Thick intake gasket. | |
| Combustion Chamber Size |
65cc or 75cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
23°
|
| Valve Spring Pocket Diameter |
1.580" O.D
|
| Max Valve Spring Pocket Machining |
1.750" O.D
|
| Warning: Do not machine spring pad any deeper. | |
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.000"
|
| Flat Mill |
.006" per cc 60cc Maximum
|
| Angle Mill |
.009" per cc 55cc Maximum
|
| Note: Angle mills might require .120" Thick intake gasket. | |
| Minimum Cross Sectional Area |
Race Ready: 2.100 sp in, Comp 2.115 sq. in
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
|
CARB Status: This product is not legal for sale or use on emission-controlled vehicles and intended for dedicated race vehicles only. |
|
| Recommended Components: | |
| Intake Gasket | |
| Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes. | |
| Exhaust Port Gasket | |
| Head Gasket, 350cid Fel-Pro #1003 | |
| Head Gasket, 400cid Fel-Pro #1014 | |
| SB Chevy Head Bolt Kit, ARP #134-3701 | |
| SB Chevy Head Stud Kit, 12 Point Nuts, ARP #234-4301 | |
| Head Bolt Washers, Manley | |
| AFR Stud Girdle | |
| Suggested Manifold | |
| Suggested Manifold | |
| Spark Plug Starting Range |
Autolite 3922
|
AFR's 185cc SB Ford "Street" cylinder heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. Recommended for engines from 302-393 cubic inches, operating up to 6000-6500 RPM. Legal for 1995 and older emissions controlled vehicles under CARB EO #D-250-3. Not compatible with OEM pistons.
| Included Components | |
| 100% CNC Ported Combustion Chambers | |
| 100% CNC Ported Exhaust Ports | |
| 100% CNC Ported Intake Ports | |
|
Competition 5-angle Valve Job |
|
| 8mm Bead Lock Intake Valve 2.020" x 4.900" O.A.L. | |
| 8mm Bead Lock Exhaust Valve 1.600" x 4.950" O.A.L. | |
| Pedastal 8mm Bead Lock Intake Valve 2.020" x 5.080" O.A.L | |
| Pedastal 8mm Bead Lock Exhaust Valve 1.600" x 5.100" O.A.L | |
| PAC Racing Spring 1.290" OD Hydraulic Roller Dual Valve Spring, 140 lbs on seat, .600" maximum lift, Max RPM 6300-6500, less than 235* duration, upgraded spring #8019 recommended for higher RPM & larger cams | |
| 7° Manley Steel Retainers 1.245" O.D x .885" I.D x .655" I.D | |
| 7° Bead Lock Valve Keepers | |
| ARP 3/8" Rocker Studs | |
| Adjustable 5/16" Guide Plates | |
| Viton Valve Seals .600" O.D x .495" I.D | |
| Hardened Valve Spring O.D Locator 1.380" O.D x .570" I.D | |
| Ductile Iron Intake Valve Seats 2.131" O.D x 1.680" I.D x .375" Deep | |
| Ductile Iron Exhaust Valve Seats 1.650" O.D x 1.350" I.D x .375" Deep | |
| 8 mm Bronze Valve Guides .502" O.D x 2.100" O.A.L | |
| Thermactor Air Injector Reducer Bushing (5/8"-11 x 7/16"-14) | |
| 185cc Street Head Flow Chart | ||||||
| .200 | .300 | .400 | .500 | .550 | .600 | |
| Int | 142 | 195 | 247 | 276 | 285 | 289 |
| Exh | 118 | 164 | 200 | 210 | 213 | 215 |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.060", 3/4" radius plate exhaust, 1 3/4" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
185cc
|
| Intake Port Dimension |
2.045" H x 1.205" W x 3/8 Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
70cc
|
| Exhaust Port Dimension |
1.355" H x 1.360" W
|
| Exhaust Port Location |
Stock
|
| Combustion Chamber Size |
58cc or 72cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
20°
|
| Valve Spring Pocket Diameter |
1.460" O.D
|
| Max Valve Spring Pocket Machining |
1.625" O.D
|
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.000"
|
| Flat Mill |
.006" per cc 54cc Max (from 58cc); 68cc Max (from 72cc);
|
| Angle Mill |
.009" per cc 48cc Max (from 58cc); 62cc Max (from 72cc)
|
| Note:Angle mills might require a .120" Thick intake gasket. | |
| Minimum Cross Sectional Area |
2.025 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
| Head Bolt Diameter |
1/2"
|
| CARB E.O# Part #'s 1422 & 1492 |
D-250-3
|
| Recommended Components: | |
| Intake Port Gasket, Fel-Pro #1262 | |
| Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes. | |
| Exhaust Port Gasket, Fel-Pro #1415 |
AFR #6837
|
| Head Gasket, 302/351W, Fel-Pro #1011-1 | |
| SB Ford 1/2" Bolt Head Bolts, ARP #154-3603 | |
| SB Ford 1/2" Bolt Head Studs, ARP #254-4503 | |
| 1/2" Bolt - 7/16" Thread Head Bolts, 289/302W: ARP 254-3708 | |
| Head Bolt Washers, Manley | |
| Stud Girdle | |
| Suggested Manifold |
Performer or Performer RPM
|
| Spark Plug Starting Range |
Autolite 3924
|
AFR's 185cc SB Ford "Street" cylinder heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. Recommended for engines from 302-393 cubic inches, operating up to 6000-6500 RPM. Legal for 1995 and older emissions controlled vehicles under CARB EO #D-250-3. Not compatible with OEM pistons.
| Included Components | |
| 100% CNC Ported Combustion Chambers | |
| 100% CNC Ported Exhaust Ports | |
| 100% CNC Ported Intake Ports | |
|
Competition 5-angle Valve Job |
|
| 8mm Bead Lock Intake Valve 2.020" x 4.900" O.A.L. | |
| 8mm Bead Lock Exhaust Valve 1.600" x 4.950" O.A.L. | |
| Pedastal 8mm Bead Lock Intake Valve 2.020" x 5.080" O.A.L | |
| Pedastal 8mm Bead Lock Exhaust Valve 1.600" x 5.100" O.A.L | |
| PAC Racing Spring 1.290" OD Hydraulic Roller Dual Valve Spring, 140 lbs on seat, .600" maximum lift, Max RPM 6300-6500, less than 235* duration, upgraded spring #8019 recommended for higher RPM & larger cams | |
| 7° Manley Steel Retainers 1.245" O.D x .885" I.D x .655" I.D | |
| 7° Bead Lock Valve Keepers | |
| ARP 3/8" Rocker Studs | |
| Adjustable 5/16" Guide Plates | |
| Viton Valve Seals .600" O.D x .495" I.D | |
| Hardened Valve Spring O.D Locator 1.380" O.D x .570" I.D | |
| Ductile Iron Intake Valve Seats 2.131" O.D x 1.680" I.D x .375" Deep | |
| Ductile Iron Exhaust Valve Seats 1.650" O.D x 1.350" I.D x .375" Deep | |
| 8 mm Bronze Valve Guides .502" O.D x 2.100" O.A.L | |
| Thermactor Air Injector Reducer Bushing (5/8"-11 x 7/16"-14) | |
| 185cc Street Head Flow Chart | ||||||
| .200 | .300 | .400 | .500 | .550 | .600 | |
| Int | 142 | 195 | 247 | 276 | 285 | 289 |
| Exh | 118 | 164 | 200 | 210 | 213 | 215 |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.060", 3/4" radius plate exhaust, 1 3/4" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
185cc
|
| Intake Port Dimension |
2.045" H x 1.205" W x 3/8 Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
70cc
|
| Exhaust Port Dimension |
1.355" H x 1.360" W
|
| Exhaust Port Location |
Stock
|
| Combustion Chamber Size |
58cc or 72cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
20°
|
| Valve Spring Pocket Diameter |
1.460" O.D
|
| Max Valve Spring Pocket Machining |
1.625" O.D
|
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.000"
|
| Flat Mill |
.006" per cc 54cc Max (from 58cc); 68cc Max (from 72cc);
|
| Angle Mill |
.009" per cc 48cc Max (from 58cc); 62cc Max (from 72cc)
|
| Note:Angle mills might require a .120" Thick intake gasket. | |
| Minimum Cross Sectional Area |
2.025 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
| Head Bolt Diameter |
1/2"
|
| CARB E.O# Part #'s 1422 & 1492 |
D-250-3
|
| Recommended Components: | |
| Intake Port Gasket, Fel-Pro #1262 | |
| Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes. | |
| Exhaust Port Gasket, Fel-Pro #1415 |
AFR #6837
|
| Head Gasket, 302/351W, Fel-Pro #1011-1 | |
| SB Ford 1/2" Bolt Head Bolts, ARP #154-3603 | |
| SB Ford 1/2" Bolt Head Studs, ARP #254-4503 | |
| 1/2" Bolt - 7/16" Thread Head Bolts, 289/302W: ARP 254-3708 | |
| Head Bolt Washers, Manley | |
| Stud Girdle | |
| Suggested Manifold |
Performer or Performer RPM
|
| Spark Plug Starting Range |
Autolite 3924
|
AFR's 295cc heads feature 100% CNC ported intake, exhaust chambers, A356 aluminum castings and high quality components throughout with standard or .250 raised exhaust port locations. Recommended for more aggressive or street/strip or racing builds with displacements up to 512 cubic inches, operating up to 6500 RPM.Please note, due to AFR's valve angle and location, custom pistons or notching existing pistons will be required.
| Included Components | |
| 100% CNC Ported Combustion Chambers | |
| 100% CNC Ported Intake & Exhaust | |
|
Competition 5-Angle Valve Job |
|
| 11/32" Bead Lock Intake Valve 2.250" x 5.250" O.A.L | |
| 11/32" Bead Lock Tulip Exhaust Valve 1.760" x 5.050" O.A.L | |
| PAC Racing #1224 1.625" OD Solid Roller Dual Valve Spring 275 lbs. on seat, .850" maximum lift, Max RPM 7400-7600 Uses #8518 Steel Retainer & #8046 Spring Cup (upgrades available) | |
| 10° Steel Retainers 1.500" O.D x 1.168" I.D x .844" I.D | |
| PAC Racing #1940 1.550" OD Hydraulic Roller Dual Valve Spring 175 lbs. on seat, .725" maximum lift Max RPM 6500-6700; Uses #8511 Steel Retainer | |
| 10° Manley Steel Retainers 1.500" O.D x 1.120" I.D x .705" I.D | |
| 10° 11/32" Beadlock Valve Keepers with lashcap recess | |
| ARP 7/16" Rocker Studs | |
| Adjustable 3/8" Guide Plates | |
| 11/32" Viton Valve Seals | |
| Hardened Valve Spring I.D Locator 1.550" O.D x .705" I.D | |
| Intake Valve Seats 2.450" O.D x 1.950" I.D x .375" Deep | |
| Exhaust Valve Seat 1.900" O.D. x 1.400" I.D. x .375" Deep | |
| 11/32" Exhaust Bronze Valve Guides .502" O.D x 2.25" O.A.L | |
| 295cc Stock Exhaust BBF Flow Chart | |||||||
| .200 | .300 | .400 | .500 | .600 | .650 | .700 | |
| Int | 165 | 243 | 304 | 352 | 390 | 394 | 402 |
| Exh | 125 | 160 | 205 | 238 | 255 | 261 | 264 |
| 295cc .250 Raised BBF Flow Chart | |||||||
| .200 | .300 | .400 | .500 | .600 | .650 | .700 | |
| Int | 165 | 243 | 304 | 352 | 390 | 394 | 402 |
| Exh | 124 | 166 | 212 | 248 | 267 | 272 | 276 |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.380", 3/4" radius plate exhaust, 2 1/8" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
295cc
|
| Intake Port Dimension |
2.275" H x 1.850" W x .575 Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
142cc
|
| Exhaust Port Dimension |
1.850"H x 1.600"W
|
| Exhaust Port Location |
Stock or .250" Raised
|
| Combustion Chamber Size |
75cc or 85cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
14° Intake/8° Exhaust
|
| Valve Cant |
4.04° Intake/4.12° Exhaust
|
| Valve Spring Pocket Diameter |
1.750" O.D
|
| Max Valve Spring Pocket Machining |
1.750" O.D
|
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.360"
|
| Flat Mill |
.007" per cc
|
| Angle Mill |
.010" per cc
|
| Note:Angle mills might require a .120" Thick intake gasket. | |
| Minimum Cross Sectional Area |
3.275 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
|
CARB Status: THESE PRODUCTS ARE ILLEGAL TO OPERATE ON ANY PUBLIC HIGHWAY. THIS MEANS ANY PUBLIC PAVED OR UNPAVED ROADWAY OR IN A PUBLIC PARK. THESE PRODUCTS ARE ONLY LEGAL IF USED ON A DEDICATED RACING VEHICLE. VIOLATION ARE SUBJECT TO A MAXIMUM PENALTY OF $37,500 PER VIOLATION PER VEHICLE, REVOCATION OF REGISTRATION BY DMV, LOSS OF USE ON PUBLIC RIGHT OF WAYS AND PROOF OF CORRECTION OF THE TAMPERING. |
|
| Recommended Components: | |
| Intake Port Gasket | |
| Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes. | |
| Exhaust Port Gasket, Fel-Pro #1420 | |
| Head Gasket, 4.500 Bore, Fel-Pro #1018 | |
| Head Bolts, ARP #255-3701 | |
| Head Studs, ARP# 155-4203 12 Point | |
| Head Bolt Washers, Manley | |
| Stud Girdle | |
| 1.75 Shaft Mount Rocker Arms T&D | |
| Suggested Manifold | |
| Suggested Manifold | |
| Spark Plug Starting Range |
Autolite 3922 - Race Gas
|
| Spark Plug Starting Range |
Autolite 3924 - Pump Gas
|
AFR's 295cc heads feature 100% CNC ported intake, exhaust chambers, A356 aluminum castings and high quality components throughout with standard or .250 raised exhaust port locations. Recommended for more aggressive or street/strip or racing builds with displacements up to 512 cubic inches, operating up to 6500 RPM.Please note, due to AFR's valve angle and location, custom pistons or notching existing pistons will be required.
| Included Components | |
| 100% CNC Ported Combustion Chambers | |
| 100% CNC Ported Intake & Exhaust | |
|
Competition 5-Angle Valve Job |
|
| 11/32" Bead Lock Intake Valve 2.250" x 5.250" O.A.L | |
| 11/32" Bead Lock Tulip Exhaust Valve 1.760" x 5.050" O.A.L | |
| PAC Racing #1224 1.625" OD Solid Roller Dual Valve Spring 275 lbs. on seat, .850" maximum lift, Max RPM 7400-7600 Uses #8518 Steel Retainer & #8046 Spring Cup (upgrades available) | |
| 10° Steel Retainers 1.500" O.D x 1.168" I.D x .844" I.D | |
| PAC Racing #1940 1.550" OD Hydraulic Roller Dual Valve Spring 175 lbs. on seat, .725" maximum lift Max RPM 6500-6700; Uses #8511 Steel Retainer | |
| 10° Manley Steel Retainers 1.500" O.D x 1.120" I.D x .705" I.D | |
| 10° 11/32" Beadlock Valve Keepers with lashcap recess | |
| ARP 7/16" Rocker Studs | |
| Adjustable 3/8" Guide Plates | |
| 11/32" Viton Valve Seals | |
| Hardened Valve Spring I.D Locator 1.550" O.D x .705" I.D | |
| Intake Valve Seats 2.450" O.D x 1.950" I.D x .375" Deep | |
| Exhaust Valve Seat 1.900" O.D. x 1.400" I.D. x .375" Deep | |
| 11/32" Exhaust Bronze Valve Guides .502" O.D x 2.25" O.A.L | |
| 295cc Stock Exhaust BBF Flow Chart | |||||||
| .200 | .300 | .400 | .500 | .600 | .650 | .700 | |
| Int | 165 | 243 | 304 | 352 | 390 | 394 | 402 |
| Exh | 125 | 160 | 205 | 238 | 255 | 261 | 264 |
| 295cc .250 Raised BBF Flow Chart | |||||||
| .200 | .300 | .400 | .500 | .600 | .650 | .700 | |
| Int | 165 | 243 | 304 | 352 | 390 | 394 | 402 |
| Exh | 124 | 166 | 212 | 248 | 267 | 272 | 276 |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.380", 3/4" radius plate exhaust, 2 1/8" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
295cc
|
| Intake Port Dimension |
2.275" H x 1.850" W x .575 Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
142cc
|
| Exhaust Port Dimension |
1.850"H x 1.600"W
|
| Exhaust Port Location |
Stock or .250" Raised
|
| Combustion Chamber Size |
75cc or 85cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
14° Intake/8° Exhaust
|
| Valve Cant |
4.04° Intake/4.12° Exhaust
|
| Valve Spring Pocket Diameter |
1.750" O.D
|
| Max Valve Spring Pocket Machining |
1.750" O.D
|
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.360"
|
| Flat Mill |
.007" per cc
|
| Angle Mill |
.010" per cc
|
| Note:Angle mills might require a .120" Thick intake gasket. | |
| Minimum Cross Sectional Area |
3.275 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
|
CARB Status: THESE PRODUCTS ARE ILLEGAL TO OPERATE ON ANY PUBLIC HIGHWAY. THIS MEANS ANY PUBLIC PAVED OR UNPAVED ROADWAY OR IN A PUBLIC PARK. THESE PRODUCTS ARE ONLY LEGAL IF USED ON A DEDICATED RACING VEHICLE. VIOLATION ARE SUBJECT TO A MAXIMUM PENALTY OF $37,500 PER VIOLATION PER VEHICLE, REVOCATION OF REGISTRATION BY DMV, LOSS OF USE ON PUBLIC RIGHT OF WAYS AND PROOF OF CORRECTION OF THE TAMPERING. |
|
| Recommended Components: | |
| Intake Port Gasket | |
| Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes. | |
| Exhaust Port Gasket, Fel-Pro #1420 | |
| Head Gasket, 4.500 Bore, Fel-Pro #1018 | |
| Head Bolts, ARP #255-3701 | |
| Head Studs, ARP# 155-4203 12 Point | |
| Head Bolt Washers, Manley | |
| Stud Girdle | |
| 1.75 Shaft Mount Rocker Arms T&D | |
| Suggested Manifold | |
| Suggested Manifold | |
| Spark Plug Starting Range |
Autolite 3922 - Race Gas
|
| Spark Plug Starting Range |
Autolite 3924 - Pump Gas
|
| Basic Package Components | |
| 100% As Cast Intake, Exhaust, and Combustion Chambers | |
| Competition 5-angle Valve Job | |
| 8mm Bead Lock Intake Valve, 2.080" x 5.200" Overall Valve Length | |
| 8mm Bead Lock Exhaust Valve, 1.600" x 5.205" Overall Valve Length | |
| PAC Racing Spring 1.290" OD Hydraulic Roller Dual Valve Spring, 140 lbs. on seat, .600 maximum lift, Max RPM 6300-6500 | |
| 7° Steel Retainers 1.245" O.D x .880" I.D x .655" I.D | |
| 7° Bead Lock Valve Keepers | |
| Viton Valve Seals .600" O.D x .495" I.D | |
| Hardened Valve Spring O.D Locator 1.380" O.D x .570" I.D | |
| Rocker Rail Stand |
AFR #6040
|
| 238cc LS3 As Cast Flow Chart | |||||||
| .200 | .300 | .400 | .500 | .550 | .600 | .650 | |
| Int | 157 | 229 | 276 | 307 | 315 | 308 | 308 |
| Exh | 112 | 152 | 182 | 204 | 209 | 215 | 217 |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.060", intake 3/4" radius plate exhaust, 1 3/4" curved pipe
| Basic Package Components | |
| 100% As Cast Intake, Exhaust, and Combustion Chambers | |
| Competition 5-angle Valve Job | |
| 8mm Bead Lock Intake Valve, 2.080" x 5.200" Overall Valve Length | |
| 8mm Bead Lock Exhaust Valve, 1.600" x 5.205" Overall Valve Length | |
| PAC Racing Spring 1.290" OD Hydraulic Roller Dual Valve Spring, 140 lbs. on seat, .600 maximum lift, Max RPM 6300-6500 | |
| 7° Steel Retainers 1.245" O.D x .880" I.D x .655" I.D | |
| 7° Bead Lock Valve Keepers | |
| Viton Valve Seals .600" O.D x .495" I.D | |
| Hardened Valve Spring O.D Locator 1.380" O.D x .570" I.D | |
| Rocker Rail Stand |
AFR #6040
|
| 238cc LS3 As Cast Flow Chart | |||||||
| .200 | .300 | .400 | .500 | .550 | .600 | .650 | |
| Int | 157 | 229 | 276 | 307 | 315 | 308 | 308 |
| Exh | 112 | 152 | 182 | 204 | 209 | 215 | 217 |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.060", intake 3/4" radius plate exhaust, 1 3/4" curved pipe
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