AFR’s new 457cc 18° Big Block Chevy cylinder heads are our best performing highest-flowing heads in our BB Chevy lineup. They come standard with stainless steel 2.400 intake valves and 1.800 exhaust valves.
The intake port is raised .500 with the valves rolled to 18° resulting in unparalleled under the curve flow numbers..... don’t be fooled by just peak flow numbers. The combustion chamber come in at 90cc. This head is ideal for 540CI or larger race engines. This head requires specific pistons, valves covers, shaft mount rockers and readily available intake manifolds. AFR offers a wide range of options and upgrades for this head like titanium valves and Copper seats.
| Basic Package Components | |
| 100% CNC Ported Intake Ports, Exhaust Ports, & Combustion Chamber | |
|
Competition 5-angle Valve Job |
|
| 11/32" Bead Lock Stainless Steel Intake Valve, 2.400" X 6.035" O.A.L. 50° Seat | |
| 11/32" Bead Lock Stainless Steel Exhaust Valve, 1.800" X 5.935" O.A.L. 55° Seat | |
| PAC Racing #1258 1.645” OD Solid Roller Triple Spring, 350 lbs. on seat, .950” maximum lift Max RPM 8300 to 8500 | |
| 10° Titanium Retainer 1.500" O.D X1.180"I.D X .765" I.D | |
| 10° 11/32" Bead Lock Valve Keepers with recess lashcaps | |
| 11/32" Viton Valve Seals | |
| Hardened Spring Cup 1.740 O.D X 1.677 I.D X .570 | |
| Intake Valve Seats 2.500" O.D X 2.000" I.D X .375" Deep | |
| Exhaust Valve Seats 1.900" O.D X 1.400" I.D X .375" Deep | |
| 11/32" Bronze Valve Guides .502" O.D X 2.700 O.A.L. | |
| 11/32" Exhaust Bronze Valve Guides .502" O.D x 2.25" O.A.L | |
| 457cc BBC | |||||||||
| .200 | .300 | .400 | .500 | .600 | .700 | .800 | .900 | 1.000 | |
| Int | 161 | 254 | 331 | 389 | 439 | 479 | 492 | 495 | 498 |
| Exh | 134 | 201 | 251 | 286 | 305 | 315 | 332 | 337 | 342 |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.625", 3/4" intake radius plate, 2 1/8" curved pipe exhaust
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
457cc
|
| Intake Port Dimension |
2.490" H X 1.750" W X 1/2" Radius
|
| Intake Port Location |
.500" Raised
|
| Exhaust Port Volume |
143cc
|
| Exhaust Port Dimension |
1.850"H x 2.090" W
|
| Exhaust Port Location |
.450" Raised
|
| Combustion Chamber Size |
90cc
|
| Valve Cover Bolt Pattern |
Standard
|
| Valve Angle |
18°/4° Int, 11°/4° Exh
|
| Valve Spring Pocket Diameter |
1.750" 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 |
4.600"
|
| Flat Mill |
.005" per cc
|
| Angle Mill |
.0066" per cc
|
| Note:Angle mills might require a .120" Thick intake gasket. | |
| Minimum Cross Sectional Area |
3.699 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/ Tapered 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 #1057 |
Fel Pro #1057
|
| Head Gasket, Cometic C5434 |
Cometic C5434
|
| Head Studs, ARP 135-4305 | |
| 1.8 Shaft Mount Rocker Arms T&D |
#3160
|
| 1.8 Shaft Mount Rocker Arms Crower |
|
| 1.8 Shaft Mount Rocker Arms Jesel |
#KPS-441172
|
| Suggested Manifold | |
| Suggested Manifold | |
| Spark Plug Starting Range |
Autolite 3932
|
| Distributor Standard Deck |
MSD #84697 or #8489
|
| Distributor Tall Deck |
MSD #85561 or #8547
|
| Valve Cover | |
| Valve Cover Gasket | |
AFR’s new 457cc 18° Big Block Chevy cylinder heads are our best performing highest-flowing heads in our BB Chevy lineup. They come standard with stainless steel 2.400 intake valves and 1.800 exhaust valves.
The intake port is raised .500 with the valves rolled to 18° resulting in unparalleled under the curve flow numbers..... don’t be fooled by just peak flow numbers. The combustion chamber come in at 90cc. This head is ideal for 540CI or larger race engines. This head requires specific pistons, valves covers, shaft mount rockers and readily available intake manifolds. AFR offers a wide range of options and upgrades for this head like titanium valves and Copper seats.
| Basic Package Components | |
| 100% CNC Ported Intake Ports, Exhaust Ports, & Combustion Chamber | |
|
Competition 5-angle Valve Job |
|
| 11/32" Bead Lock Stainless Steel Intake Valve, 2.400" X 6.035" O.A.L. 50° Seat | |
| 11/32" Bead Lock Stainless Steel Exhaust Valve, 1.800" X 5.935" O.A.L. 55° Seat | |
| PAC Racing #1258 1.645” OD Solid Roller Triple Spring, 350 lbs. on seat, .950” maximum lift Max RPM 8300 to 8500 | |
| 10° Titanium Retainer 1.500" O.D X1.180"I.D X .765" I.D | |
| 10° 11/32" Bead Lock Valve Keepers with recess lashcaps | |
| 11/32" Viton Valve Seals | |
| Hardened Spring Cup 1.740 O.D X 1.677 I.D X .570 | |
| Intake Valve Seats 2.500" O.D X 2.000" I.D X .375" Deep | |
| Exhaust Valve Seats 1.900" O.D X 1.400" I.D X .375" Deep | |
| 11/32" Bronze Valve Guides .502" O.D X 2.700 O.A.L. | |
| 11/32" Exhaust Bronze Valve Guides .502" O.D x 2.25" O.A.L | |
| 457cc BBC | |||||||||
| .200 | .300 | .400 | .500 | .600 | .700 | .800 | .900 | 1.000 | |
| Int | 161 | 254 | 331 | 389 | 439 | 479 | 492 | 495 | 498 |
| Exh | 134 | 201 | 251 | 286 | 305 | 315 | 332 | 337 | 342 |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.625", 3/4" intake radius plate, 2 1/8" curved pipe exhaust
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
457cc
|
| Intake Port Dimension |
2.490" H X 1.750" W X 1/2" Radius
|
| Intake Port Location |
.500" Raised
|
| Exhaust Port Volume |
143cc
|
| Exhaust Port Dimension |
1.850"H x 2.090" W
|
| Exhaust Port Location |
.450" Raised
|
| Combustion Chamber Size |
90cc
|
| Valve Cover Bolt Pattern |
Standard
|
| Valve Angle |
18°/4° Int, 11°/4° Exh
|
| Valve Spring Pocket Diameter |
1.750" 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 |
4.600"
|
| Flat Mill |
.005" per cc
|
| Angle Mill |
.0066" per cc
|
| Note:Angle mills might require a .120" Thick intake gasket. | |
| Minimum Cross Sectional Area |
3.699 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/ Tapered 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 #1057 |
Fel Pro #1057
|
| Head Gasket, Cometic C5434 |
Cometic C5434
|
| Head Studs, ARP 135-4305 | |
| 1.8 Shaft Mount Rocker Arms T&D |
#3160
|
| 1.8 Shaft Mount Rocker Arms Crower |
|
| 1.8 Shaft Mount Rocker Arms Jesel |
#KPS-441172
|
| Suggested Manifold | |
| Suggested Manifold | |
| Spark Plug Starting Range |
Autolite 3932
|
| Distributor Standard Deck |
MSD #84697 or #8489
|
| Distributor Tall Deck |
MSD #85561 or #8547
|
| Valve Cover | |
| Valve Cover Gasket | |
We are proud to announce the release of 3 NEW camshafts to compliment our 260cc Mongoose LS3 cylinder heads. Whether you are got a Gen5 Camaro or a C6 Corvette, we can take your setup from mild to wild with one of these new bump sticks. All grinds are made using a billet steel core and are suitable for factory displacement engines ranging from 5.7 to 6.2. Installation will require the use of a 3 bolt style cam gear and bolts, AFR part #6010 (gear) and AFR part #6011 (3 bolts).
RPM Range: 2,500-7,000 RPM
Vacuum @ Idle: 12" @ 900 RPM
LSA: 114+3
Duration @ 50: Intake - 227 / Exhaust - 235.
Valve Lift: Intake - 620 / Exhaust - 612.
Test Engine: Stock GM 6.2L LS3 short block with no modifications. AFR LS3 260cc Square port heads part #1845. AFR hydraulic roller cam part #’s 6012, 6013 & 6014 with stock rocker arms. Stock L92 intake with 90mm throttle body. Hooker headers with 1 7/8” primaries connected to Superflow dyno mufflers.
CARB Status: This product is not legal for sale or use on emission-controlled vehicles and intended for dedicated race vehicles only.
We are proud to announce the release of 3 NEW camshafts to compliment our 260cc Mongoose LS3 cylinder heads. Whether you are got a Gen5 Camaro or a C6 Corvette, we can take your setup from mild to wild with one of these new bump sticks. All grinds are made using a billet steel core and are suitable for factory displacement engines ranging from 5.7 to 6.2. Installation will require the use of a 3 bolt style cam gear and bolts, AFR part #6010 (gear) and AFR part #6011 (3 bolts).
RPM Range: 2,500-7,000 RPM
Vacuum @ Idle: 12" @ 900 RPM
LSA: 114+3
Duration @ 50: Intake - 227 / Exhaust - 235.
Valve Lift: Intake - 620 / Exhaust - 612.
Test Engine: Stock GM 6.2L LS3 short block with no modifications. AFR LS3 260cc Square port heads part #1845. AFR hydraulic roller cam part #’s 6012, 6013 & 6014 with stock rocker arms. Stock L92 intake with 90mm throttle body. Hooker headers with 1 7/8” primaries connected to Superflow dyno mufflers.
CARB Status: This product is not legal for sale or use on emission-controlled vehicles and intended for dedicated race vehicles only.
We are proud to announce the release of 3 NEW camshafts to compliment our 260cc Mongoose LS3 cylinder heads. Whether you are got a Gen5 Camaro or a C6 Corvette, we can take your setup from mild to wild with one of these new bump sticks. All grinds are made using a billet steel core and are suitable for factory displacement engines ranging from 5.7 to 6.2. Installation will require the use of a 3 bolt style cam gear and bolts, AFR part #6010 (gear) and AFR part #6011 (3 bolts).
RPM Range: 2000-6500 RPM
Vacuum @ Idle: 14" @ 800 RPM
LSA: 115+4
Duration @ 50: Intake - 223 / Exhaust - 231.
Valve Lift: Intake - 604 / Exhaust - 595.
Test Engine: Stock GM 6.2L LS3 short block with no modifications. AFR LS3 260cc Square port heads part #1845. AFR hydraulic roller cam part #’s 6012, 6013 & 6014 with stock rocker arms. Stock L92 intake with 90mm throttle body. Hooker headers with 1 7/8” primaries connected to Superflow dyno mufflers.
CARB Status: This product is not legal for sale or use on emission-controlled vehicles and intended for dedicated race vehicles only.
We are proud to announce the release of 3 NEW camshafts to compliment our 260cc Mongoose LS3 cylinder heads. Whether you are got a Gen5 Camaro or a C6 Corvette, we can take your setup from mild to wild with one of these new bump sticks. All grinds are made using a billet steel core and are suitable for factory displacement engines ranging from 5.7 to 6.2. Installation will require the use of a 3 bolt style cam gear and bolts, AFR part #6010 (gear) and AFR part #6011 (3 bolts).
RPM Range: 2000-6500 RPM
Vacuum @ Idle: 14" @ 800 RPM
LSA: 115+4
Duration @ 50: Intake - 223 / Exhaust - 231.
Valve Lift: Intake - 604 / Exhaust - 595.
Test Engine: Stock GM 6.2L LS3 short block with no modifications. AFR LS3 260cc Square port heads part #1845. AFR hydraulic roller cam part #’s 6012, 6013 & 6014 with stock rocker arms. Stock L92 intake with 90mm throttle body. Hooker headers with 1 7/8” primaries connected to Superflow dyno mufflers.
CARB Status: This product is not legal for sale or use on emission-controlled vehicles and intended for dedicated race vehicles only.
AFR Beanie
One Size Fits All.
Black
Air Flow Research is proud to announce release of our NEW 4830 Renegade SBF aluminum intake manifold.
Air Flow Research is proud to announce release of our NEW 4830 Renegade SBF aluminum intake manifold.
AFR's 190cc Vortec Street heads are the preferred choice over reworked factory heads. They feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. Recommended for street, towing, or street/strip engines from 350-383 cubic inches, operating up to 6000 RPM. Not compatible with self-aligning rocker arms.
| Included Components | |
| 100% CNC Ported Combustion Chambers | |
| 90% CNC Ported Exhaust Ports | |
| 100% CNC Ported Intake Ports | |
|
Competition 5-angle Valve Job |
|
| 8mm Bead Lock Intake Valve, 2.020" x 4.900" Overall Valve Length | |
| 8mm Bead Lock Exhaust Valve, 1.600" x 4.950" 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, less than 235* duration, upgraded spring #8019 recommended for higher RPM & larger cams |
|
| 7° Chrome Moly 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 2.200" 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 | |
| 190cc Street Head Flow Chart | |||||
| .200 | .300 | .400 | .500 | .550 | |
| Int | 135 | 213 | 253 | 276 | 279 |
| Exh | 110 | 158 | 190 | 207 | 211 |
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 |
190cc
|
| Intake Port Dimension |
2.320" H x 1.297" W x 3/8° Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
64cc
|
| Exhaust Port Dimension |
1.450" H x 1.550" W
|
| Exhaust Port Location |
.100" Raised
|
| Combustion Chamber Size |
65cc
|
| Valve Cover Bolt Pattern |
Center & Perimeter Bolt
|
| Valve Angle |
23°
|
| Valve Spring Pocket Diameter |
1.460" 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 |
2.070 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 |
GM Vortec or Fel-Pro #12895 (.120 Thick)
|
| 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 | |
| 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 |
GM or Aftermarket Vortec
|
| Spark Plug Starting Range |
Autolite 3924
|
AFR's 190cc Vortec Street heads are the preferred choice over reworked factory heads. They feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. Recommended for street, towing, or street/strip engines from 350-383 cubic inches, operating up to 6000 RPM. Not compatible with self-aligning rocker arms.
| Included Components | |
| 100% CNC Ported Combustion Chambers | |
| 90% CNC Ported Exhaust Ports | |
| 100% CNC Ported Intake Ports | |
|
Competition 5-angle Valve Job |
|
| 8mm Bead Lock Intake Valve, 2.020" x 4.900" Overall Valve Length | |
| 8mm Bead Lock Exhaust Valve, 1.600" x 4.950" 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, less than 235* duration, upgraded spring #8019 recommended for higher RPM & larger cams |
|
| 7° Chrome Moly 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 2.200" 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 | |
| 190cc Street Head Flow Chart | |||||
| .200 | .300 | .400 | .500 | .550 | |
| Int | 135 | 213 | 253 | 276 | 279 |
| Exh | 110 | 158 | 190 | 207 | 211 |
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 |
190cc
|
| Intake Port Dimension |
2.320" H x 1.297" W x 3/8° Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
64cc
|
| Exhaust Port Dimension |
1.450" H x 1.550" W
|
| Exhaust Port Location |
.100" Raised
|
| Combustion Chamber Size |
65cc
|
| Valve Cover Bolt Pattern |
Center & Perimeter Bolt
|
| Valve Angle |
23°
|
| Valve Spring Pocket Diameter |
1.460" 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 |
2.070 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 |
GM Vortec or Fel-Pro #12895 (.120 Thick)
|
| 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 | |
| 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 |
GM or Aftermarket Vortec
|
| Spark Plug Starting Range |
Autolite 3924
|
A cost effective choice compared to re-worked factory heads, our 205cc package features fully CNC ported intake and exhaust runners, and combustion chambers. Recommended for street, street/strip and towing applications with displacements up to 383 cubic inches, operating at or below 6300 RPM. A minimum 3.900" bore size is required to clear the supplied 2.020" valve. These heads are legal for use on 2005 and older emissions controlled vehicles, under CARB EO #D-250-4.
*LSX bead locks and aftermarket bead locks are not interchangeable. GM made their bead lock radius and depth different. AFR locks are the same as GM LSX.
| 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" Overall Valve Length | |
| 8mm Bead Lock Exhaust Valve, 1.600” x 4.900" 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, less than 235* duration, upgraded spring #8019 recommended for higher RPM & larger cams |
|
| 7° Titanium Retainers 1.245" O.D x .885" 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 | |
| 205cc Competition Flow Chart | ||||||
| .200 | .300 | .400 | .500 | .550 | .600 | |
| Int | 147 | 214 | 249 | 284 | 296 | 301 |
| Exh | 111 | 150 | 209 | 225 | 230 | 233 |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 3.900", intake 3/4" radius plate exhaust, 1 3/4" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
205cc
|
| Intake Port Dimension |
3.275"H x 1.120"W x5/16 top 3/8 bottom
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
84cc
|
| Exhaust Port Dimension |
1.415" H x 1.710" W
|
| Exhaust Port Location |
Stock
|
| Combustion Chamber Size |
66cc
|
| Valve Cover Bolt Pattern |
Center Bolt
|
| Valve Angle |
15°
|
| Valve Spring Pocket Diameter |
1.510" O.D
|
| Max Valve Spring Pocket Machining |
1.525" O.D
|
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
3.900"
|
| Flat Mill |
.006" per cc 58cc Maximum
|
| Minimum Cross Sectional Area |
2.185 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Tapered Seat
|
| CARB E.O. |
#D-250-4
|
| Recommended Components: | |
| Intake Port Gasket |
GM or FAST
|
| Exhaust Port Gasket |
GM#12558573
|
| Head Gasket |
Cometic 3.930 .040” or AFR #6846
|
| Head Bolts (97-03) |
ARP 134-3609 or AFR #6330
|
| Head Studs (97-03) |
ARP 234-4110 or AFR #6331
|
| Head Bolts (04+) |
ARP 134-3610 or AFR #6334
|
| Head Studs (04+) |
ARP 234-4317 or AFR #6335
|
| Head Bolt Washers, Manley | |
| Suggested Manifold |
FAST 90mm, 92mm, or 102mm
|
| Spark Plug Starting Range |
NGK TR55
|
A cost effective choice compared to re-worked factory heads, our 205cc package features fully CNC ported intake and exhaust runners, and combustion chambers. Recommended for street, street/strip and towing applications with displacements up to 383 cubic inches, operating at or below 6300 RPM. A minimum 3.900" bore size is required to clear the supplied 2.020" valve. These heads are legal for use on 2005 and older emissions controlled vehicles, under CARB EO #D-250-4.
*LSX bead locks and aftermarket bead locks are not interchangeable. GM made their bead lock radius and depth different. AFR locks are the same as GM LSX.
| 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" Overall Valve Length | |
| 8mm Bead Lock Exhaust Valve, 1.600” x 4.900" 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, less than 235* duration, upgraded spring #8019 recommended for higher RPM & larger cams |
|
| 7° Titanium Retainers 1.245" O.D x .885" 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 | |
| 205cc Competition Flow Chart | ||||||
| .200 | .300 | .400 | .500 | .550 | .600 | |
| Int | 147 | 214 | 249 | 284 | 296 | 301 |
| Exh | 111 | 150 | 209 | 225 | 230 | 233 |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 3.900", intake 3/4" radius plate exhaust, 1 3/4" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
205cc
|
| Intake Port Dimension |
3.275"H x 1.120"W x5/16 top 3/8 bottom
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
84cc
|
| Exhaust Port Dimension |
1.415" H x 1.710" W
|
| Exhaust Port Location |
Stock
|
| Combustion Chamber Size |
66cc
|
| Valve Cover Bolt Pattern |
Center Bolt
|
| Valve Angle |
15°
|
| Valve Spring Pocket Diameter |
1.510" O.D
|
| Max Valve Spring Pocket Machining |
1.525" O.D
|
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
3.900"
|
| Flat Mill |
.006" per cc 58cc Maximum
|
| Minimum Cross Sectional Area |
2.185 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Tapered Seat
|
| CARB E.O. |
#D-250-4
|
| Recommended Components: | |
| Intake Port Gasket |
GM or FAST
|
| Exhaust Port Gasket |
GM#12558573
|
| Head Gasket |
Cometic 3.930 .040” or AFR #6846
|
| Head Bolts (97-03) |
ARP 134-3609 or AFR #6330
|
| Head Studs (97-03) |
ARP 234-4110 or AFR #6331
|
| Head Bolts (04+) |
ARP 134-3610 or AFR #6334
|
| Head Studs (04+) |
ARP 234-4317 or AFR #6335
|
| Head Bolt Washers, Manley | |
| Suggested Manifold |
FAST 90mm, 92mm, or 102mm
|
| Spark Plug Starting Range |
NGK TR55
|
AFR's 215cc mongoose cylinder heads a recommended for moderate street or street/strip builds with displacements up to 408 cubic inches operating at or below 6500 RPM. This medium sized, high velocity torque monster flows 312 CFM @0.600" of lift.
| 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" Overall Valve Length | |
| 8mm Bead Lock Exhaust Valve, 1.600” x 4.900" 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, less than 235* duration, upgraded spring #8019 recommended for higher RPM & larger cams |
|
| 7° Titanium Retainers 1.245" O.D x .885" 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 | |
| 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 | |
| 215cc Competition Flow Chart | ||||||
| .200 | .300 | .400 | .500 | .550 | .600 | |
| Int | 149 | 215 | 259 | 293 | 300 | 303 |
| Exh | 111 | 150 | 209 | 225 | 230 | 233 |
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 |
215cc
|
| Intake Port Dimension |
3.275"H x 1.120"W x5/16 top 3/8 bottom
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
85cc
|
| Exhaust Port Dimension |
1.415" H x 1.710" W
|
| Exhaust Port Location |
Stock
|
| Combustion Chamber Size |
65cc
|
| Valve Cover Bolt Pattern |
Center Bolt
|
| Valve Angle |
15°
|
| Valve Spring Pocket Diameter |
1.510" O.D
|
| Max Valve Spring Pocket Machining |
1.525" O.D
|
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
3.900"
|
| Flat Mill |
.006" per cc 58cc Maximum
|
| Minimum Cross Sectional Area |
2.260 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 or FAST
|
| Exhaust Port Gasket |
GM#12558573
|
| Head Gasket |
Cometic 4.160 .040" or AFR #6848
|
| Head Bolts (97-03) |
ARP 134-3609 or AFR #6330
|
| Head Studs (97-03) |
ARP 234-4110 or AFR #6331
|
| Head Bolts (04+) |
ARP 134-3610 or AFR #6334
|
| Head Studs (04+) |
ARP 234-4317 or AFR #6335
|
| Head Bolt Washers, Manley | |
| Suggested Manifold |
FAST 90mm, 92mm, or 102mm
|
| Spark Plug Starting Range |
NGK TR55
|
AFR's 215cc mongoose cylinder heads a recommended for moderate street or street/strip builds with displacements up to 408 cubic inches operating at or below 6500 RPM. This medium sized, high velocity torque monster flows 312 CFM @0.600" of lift.
| 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" Overall Valve Length | |
| 8mm Bead Lock Exhaust Valve, 1.600” x 4.900" 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, less than 235* duration, upgraded spring #8019 recommended for higher RPM & larger cams |
|
| 7° Titanium Retainers 1.245" O.D x .885" 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 | |
| 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 | |
| 215cc Competition Flow Chart | ||||||
| .200 | .300 | .400 | .500 | .550 | .600 | |
| Int | 149 | 215 | 259 | 293 | 300 | 303 |
| Exh | 111 | 150 | 209 | 225 | 230 | 233 |
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 |
215cc
|
| Intake Port Dimension |
3.275"H x 1.120"W x5/16 top 3/8 bottom
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
85cc
|
| Exhaust Port Dimension |
1.415" H x 1.710" W
|
| Exhaust Port Location |
Stock
|
| Combustion Chamber Size |
65cc
|
| Valve Cover Bolt Pattern |
Center Bolt
|
| Valve Angle |
15°
|
| Valve Spring Pocket Diameter |
1.510" O.D
|
| Max Valve Spring Pocket Machining |
1.525" O.D
|
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
3.900"
|
| Flat Mill |
.006" per cc 58cc Maximum
|
| Minimum Cross Sectional Area |
2.260 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 or FAST
|
| Exhaust Port Gasket |
GM#12558573
|
| Head Gasket |
Cometic 4.160 .040" or AFR #6848
|
| Head Bolts (97-03) |
ARP 134-3609 or AFR #6330
|
| Head Studs (97-03) |
ARP 234-4110 or AFR #6331
|
| Head Bolts (04+) |
ARP 134-3610 or AFR #6334
|
| Head Studs (04+) |
ARP 234-4317 or AFR #6335
|
| Head Bolt Washers, Manley | |
| Suggested Manifold |
FAST 90mm, 92mm, or 102mm
|
| Spark Plug Starting Range |
NGK TR55
|
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Part# 3708