PRC Aftermarket LS3 As-Cast Cylinder Heads Cylinder Heads (sold in pairs)
$2,299.99
[product_msrp]
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- 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
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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!
MADE IN THE USA!!
CAST IN THE USA!!
MACHINED IN THE USA!!
CAST IN THE USA!!
MACHINED IN THE USA!!
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 |
| Configuration | Bare (no valve springs), Assembled (.660 PAC spring kit), Assembled (.750 PAC spring kit) |
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