AFR Enforcer LS3 Cylinder Heads | 238cc | 1803

AFR Enforcer LS3 Cylinder Heads | 238cc | 1803AFR Enforcer 238cc Rectangle Port Cylinder Heads AFR's latest release Enforcer cylinder heads are designed as a high performance as cast cylinder head! Using their patented Permanent Mold Technology AFR as developed a high flowing casting based off the Mongoose version that outperforms the OEM castings & comparable options in the range by over 20CFM across the board. The AFR Enforcer comes assembled with Stainless Steel valves & PAC Valve Springs for

AFR Enforcer 238cc Rectangle Port Cylinder Heads
AFR's latest release Enforcer cylinder heads are designed as a high performance as cast cylinder head!
Using their patented Permanent Mold Technology AFR as developed a high flowing casting based off the Mongoose version that outperforms the OEM castings & comparable options in the range by over 20CFM across the board.
The AFR Enforcer comes assembled with Stainless Steel valves & PAC Valve Springs for an out of the box ready to bolt on upgrade!

Features Of Your New AFR Enforcer 238cc Cylinder heads
- 12 degree valve angles;
- 69cc Chamber;
- Cast from A356 Aluminium;
- Accepts factory LS3 Rockers (Note requires AFR Stands);
- 'As Cast' combustion chambers;
- 'As Cast' Intake & Exhaust Ports;
- 5 Axis Competition Valve Job;

Flow Rating CFM Results
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
238cc Street Head 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

Your New AFR Cylinder Heads Package Includes
- AFR 238cc Enforcer Rectangle Port Cylinder Heads (Pair);
- 6 bolt cylinder heads;
- Complete 5-Axis CNC port & polish program;
- 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;
- 8 mm Bronze Valve Guides .502" O.D x 2.550" O.A.L;
- PAC Racing Spring 1.270" OD Hydraulic Roller Dual Valve Spring, 140 lbs. on seat, Max RPM 6500;
- 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;
- Assembled;