Our largest and highest flowing head for the small block ford is the best in-line head money can buy. Featuring 220cc intake runners, this package is recommended for race applications and radical "Pro-Street" builds. Available with 58cc or 72cc combustions chambers, you can further customize your setup with our various components upgrades and available machining options.
| 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" O.A.L. | |
| 8mm Bead Lock Exhaust Valve 1.570" x 5.030" O.A.L. | |
| PAC Racing Spring 1.550" OD Solid Roller Dual Valve Spring, 220 lbs on seat, .710" maximum lift, Max RPM 7200-7400 | |
| 10° Steel Retainers 1.500" O.D x 1.120" I.D x .705" I.D | |
| 10° Bead Lock 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 .705" 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 | |
| 220cc Street Head Flow Chart | |||||||
| .200 | .300 | .400 | .500 | .600 | .700 | .800 | |
| Int | 135 | 194 | 258 | 295 | 315 | 325 | 331 |
| Exh | 121 | 171 | 215 | 238 | 245 | 249 | 250 |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.155", 3/4" radius plate exhaust, 1 7/8" curved pipe
Our largest and highest flowing head for the small block ford is the best in-line head money can buy. Featuring 220cc intake runners, this package is recommended for race applications and radical "Pro-Street" builds. Available with 58cc or 72cc combustions chambers, you can further customize your setup with our various components upgrades and available machining options.
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
220cc
|
| Intake Port Dimension |
2.265" H x 1.325" W x 3/8 Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
70cc
|
| Exhaust Port Dimension |
1.445" H x 1.595" W
|
| Exhaust Port Location |
Raised .375"
|
| Combustion Chamber Size |
58cc or 72cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
20°
|
| Valve Spring Pocket Diameter |
1.580" O.D
|
| Max Valve Spring Pocket Machining |
1.580" O.D
|
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.000"
|
| Flat Mill |
.006" per cc 55cc Max (from 58cc); 69cc Max (from 72cc);
|
| Angle Mill |
.009" per 52cc Max (from 58cc); 66cc Max (from 72cc);
|
| Minimum Cross Sectional Area |
2.345 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. | |
| Head Bolt Diameter |
1/2"
|
| Recommended Components: | |
| Intake Port Gasket, Fel-Pro #1262R | |
| 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 #1487 | |
| Head Gasket, 302/351W, Fel-Pro #1011-1 | |
| SB Ford 1/2" Bolt Head Bolt Kit, ARP #154-3603 | |
| SB Ford 1/2" Bolt Head Stud Kit, ARP #254-4503 | |
| 1/2" Bolt - 7/16" Thread Head Bolts, 289/302W: ARP 254-3708 | |
| Head Bolt Washer Kit, Manley | |
| Stud Girdle | |
| Suggested Manifold |
Super Vic or Vic Jr.
|
| Spark Plug Starting Range |
Autolite 3922 - Race Gas
|
| Spark Plug Starting Range |
Autolite 3924 - Pump Gas
|
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