PRC LS7 Cylinder Heads | 265cc | CNC Ported | Small Bore

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 6 Bolt Cylinder Heads Include
- 100% USA Made 6 Bolt LSX LS7 Port Castings;
- 66cc Combustion Chamber options;
- 265cc 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;
- 2.205" Stainless Steel Intake Valves (Optional Upgrades Available);
- 1.610" 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;
- Suited to 4.00" Inch & Larger Bore;

How Do They Work?
**Valve spring lift ratings are based on using titanium intake valves.
PRC 265cc LS7 Intake PRC LS7 Exhaust
.200 169 118
.300 246 176
.400 304 208
.500 348 221
.600 380 230
.650 383 235
.700 388 240

What Is The Process To Order Your New Cylinder Heads?
We aim to keep most products in stock however certain items may require manufacturing. We recommend confirming whether these are in stock or if there is a current eta.
1. If the cylinder heads are In Stock. Once payment has been completed on your order this will ship out within 24 hours.
2. If the cylinder heads need to be ordered in, we will confirm the ETA prior to order. You will simply be required to place a deposit with the balance due upon arrival to us prior to shipping out.
The ETA provided will factor in variables such as manufacturers stock or manufacturing lead times, shipping eta's etc.
We recommend always confirming this prior to order.