AFR Enforcer LS3 Cylinder Heads | 238cc | 1803

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

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;