Product Description
PRC 4.00+" Bore Cathedral Port 15 Degree 247cc Heads & TSP Cam Package | Outright
Texas Speed & Performance have been at the forefront of LS/LT 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.
Your New PRC 247cc AS CAST Cylinder Heads Include
The all new PRC 247cc cylinder head is finally available for customers looking for the PINNACLE bolt on 15 degree LS cathedral port performance cylinder heads.
The new PRC as-cast intake port has been flow-bench tested to flow over 360 CFM and can support everything from smaller camshaft street engines, All the way to all-out race engines!
This cylinder head is a combination of a max-effort, high-flowing port with a smaller chamber designed for max power in minimum of 4.00" bore!!
***If you purchase a Melling oil pump you MUST use a single-roller timing set! The Melling oil pump will not clear a double-roller timing set!***
Features & Inclusions of your new PRC 247cc Cylinder Heads
- 68cc CNC Machined Chambers
- 247cc Intake Runners
- 84cc Exhaust Runners
- Designed as a complete bolt on cylinder head with minimal change to pushrod length
- Built In Rocker Pedestals (No Rocker Stands Required)
- Texas Speed Spring Kit with PAC Racing Dual Polished Platinum Valve Springs Rated to .660" Lift Incl. Titanium Retainers!
- 12 Degree Valve Angle
- CHE Bronze Guides
- 2.120" Stainless Steel Intake Valves
- 1.600" Stainless Steel Exhaust Valves
- CHE Bronze Valve Guides
- Factory Rocker Friendly
- Extra Thick Deck Surfaces For BOOST!!
Flow Data
4.00" Flow Plate - No Exhaust Pipe
| LIFT | INTAKE FLOW | EXHAUST FLOW |
| .100" | 66 CFM | 57 CFM |
| .200" | 147 CFM | 117 CFM |
| .300" | 228 CFM | 170 CFM |
| .400" | 282 CFM | 206 CFM |
| .500" | 321 CFM | 227 CFM |
| .600" | 343 CFM | 235 CFM |
| .650" | 355 CFM | 241 CFM |
| .700" | 360 CFM | 245 CFM |
Camshaft Package Includes
- Texas Speed Camshaft Of Your Choice - Select your camshaft from the above drop down list
- Texas Speed Chromoly 7.400" (Standard LS) pushrods
- Texas Speed Springs Kit with PAC Racing Dual Polished Platinum Valve Springs
- Texas Speed PRC Titanium retainers
- Viton valve seals
- CHE Bronze Valve guides
- ARP Camshaft Bolts
- 3 x Bolt Cam Gear
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.
