PRC LS3 As-Cast Aftermarket Heads, 68cc, TSP .660" Dual Spring Kit w/ Ti Retainers
PRECISION RACE COMPONENTS
Precision Race Components all new LS3 as-cast cylinder heads completed with CNC machined chambers & valve guides. For LS3/L99/L92/LSA/LS9 applications requiring a high flow aftermarket cylinder head at a competitive price!
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MADE IN THE USA!!
CAST IN THE USA!!
MACHINED IN THE USA!!
- As-Cast 257cc Intake Runners With CNC Machined Chambers & Valve Guides For Unmatched Flow!
- 68cc CNC Machined Chambers
- Thicker Deck Surface Makes Them Ideal For Power-Adder Applications
- Relocated valves with 13° Valve Angles
- 2.170" Hollow Stem Stainless Intake Valves / 1.600" Stainless Exhaust Valves
- Utilizes Factory Rocker Arms
- TSP .660 Spring Kit w/ PAC Valve Springs & Titanium Retainers
The all new PRC LS3 As-Cast cylinder heads are now available for customers looking for the ultimate as-cast LS3 cylinder heads available. The new PRC as-cast intake port has been flow bench tested to flow 369 CFM & can support everything from smaller camshaft street engines all the way to all out race engines.
Flow Data (4.00" Flow Plate - No Exhaust Pipe):
| LIFT | INTAKE FLOW | EXHAUST FLOW |
|
| ||
| .200" | 153 CFM | 114 CFM |
| .300" | 233 CFM | 163 CFM |
| .400" | 287 CFM | 191 CFM |
| .500" | 329 CFM | 214 CFM |
| .600" | 357 CFM | 228 CFM |
| .650" | 369 CFM | 233 CFM |
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