PRC LS1/2 Cylinder Heads | 227cc | CNC Ported

PRC LS1/2 Cylinder Heads | 227cc | CNC PortedTexas Speed & Performance have been at the forefront of LSX Performance from Day One! Responsible for setting & breaking almost every record, a major key to their success has been the R&D that goes into the Texas Speed Cylinder Head range known as PRC. The Precision Race Components range offers a large selection of high performance cylinder heads to suit all performance applications & all made, machined & ported in house in USA. Your New PRC CNC

Texas Speed & Performance have been at the forefront of LSX Performance from Day One!
Responsible for setting & breaking almost every record, a major key to their success has been the R&D that goes into the Texas Speed Cylinder Head range known as PRC.
The Precision Race Components range offers a large selection of high performance cylinder heads to suit all performance applications & all made, machined & ported in-house in USA.

Your New PRC CNC Ported Cylinder Heads Include
- 100% USA Made 6 Bolt LSX Cathedral Port Castings;
- 62cc Combustion Chamber options;
- 220cc Intake Runners;
- Built In Rocker Pedestals (No Rocker Stands Required);
- PAC .660" Dual Valve Springs Incl Titanium Retainers *Optional upgrade available;
- 12 Degree Valve Angle;
- 2.065" Stainless Steel Intake Valves (Optional Upgrades Available);
- 1.600" Stainless Steel Exhaust Valves;
- CHE Bronze Valve Guides;

PRC CNC Porting Process
- CNC machining of your cylinder heads intake runner;
- CNC machining of your cylinder heads exhaust port;
- CNC machining & porting of the combustion chamber to specified CC;
- 5 Axis CNC cutting of your cylinder heads valve seats;
- CNC cut valve spring seats;
- Machine the deck face to increase compression;
- Designed for 3.9"-4.0" Bore;