PRC Aftermarket LS3 As-Cast Cylinder Heads Cylinder Heads (sold in pairs)

  • 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

$2,101.19

Available

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SKU: 199-SSPRCLs3AsCast Categories: , Tags: , , , Brand: ,
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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!!
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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