1 1

Spike Performance

PRC As-Cast 225cc LS1/LS2 Cathedral Heads 5.7 LS1/ LS2 6.0

PRC As-Cast 225cc LS1/LS2 Cathedral Heads 5.7 LS1/ LS2 6.0

$2,499.00 USD
$2,499.00 USD
Sale Sold out
Shipping calculated at checkout.

Precision Race Components all new as-cast cylinder heads completed with CNC machined chambers & valve guides. For  LS1/LS2 applications requiring a high flow aftermarket cylinder head at a unbelievable price!

  • As-Cast 225cc Intake Runners With CNC Machined Chambers & Valve Guides For Unmatched Flow!
  • Large Bore Configurations for customers looking for bigger bores such as stroker or boost applications
  • 68cc CNC Machined Chambers
  • 2.065" Hollow Stem Intake / 1.600" Stainless Exhaust Valves
  • Utilizes Factory LS1 Rocker Arms
  • TSP .750" high rev spring kit with titanium retainers, spring seats, valve seals
The all new PRC 225cc As-Cast cylinder heads are finally available for customers looking for the ultimate as-cast cathedral LS heads available.  The new PRC as-cast intake port has been flow bench tested to flow over 320cfm & 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 combined with a smaller chamber designed for max power in stock cube applications.


Flow Data (4.00" Flow Plate - No Exhaust Pipe):

 

LIFT

INTAKE FLOW 

EXHAUST FLOW 

 .100"  

68 CFM 

56 CFM 

 .200"  

 145 CFM

 113 CFM

 .300"  

 210 CFM

 164 CFM

 .400"  

 257 CFM

 200 CFM

 .500"  

 300 CFM

 214 CFM

 .600"  

 318 CFM

 229 CFM

 .650"  

 321 CFM

 230 CFM
View full details