Product Description
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
*Note: these are supplied as a complete assembled head (not including rockers).
Rockers are sold separately to suit your application.
PRC CNC Porting Process
We often get asked - What exactly happens with my heads when they get CNC machined?
Good question. We all know that CNC heads are good. Why? Because it is common knowledge, However lets have a look at what the process is for your cylinder heads that gain so much horsepower & torque!
- 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?
Flow Data: @ 4.125" Bore Plate Superflow 600
| 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 |
**Valve spring lift ratings are based on using titanium intake valves.
Want To Chat With Us To Discuss Your Cylinder Head Upgrade?
Sure! Give us a call on (03)8595 4343 OR Simply click Get In Touch & schedule a time that best suits you. We will have one of our sales consultants contact you at your convenience.
Alternatively, We are available for Live Chat right now!
Buy NOW!
Shop with confidence with free freight Australia wide & discounted pricing.
