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ShopLate Model GM Cars/Trucks05-13 Corvette C6Engine & ValvetrainCylinder Heads → PRC CNC Porting Service - Cathedral Port Heads (Customer Supplied Castings)
PRC CNC Porting Service - Cathedral Port Heads (Customer Supplied Castings)

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PRC CNC Porting Service - Cathedral Port Heads (Customer Supplied Castings)

PRC CNC Porting Service - Cathedral Port Heads (Customer Supplied Castings)

base price $750.00
item# 199-CathedralPorting
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Click Here to SEE why we build better heads! 

All Precision Race Components (PRC) cylinder heads come fully CNC-ported and machined using state-of-the-art technology. The price listed is for you sending your LS1, LS6, LS2, LQ9, LQ4 , 4.8 or 5.3 cylinder head castings to us for our stage 1 porting service.  We also offer the optional stage 2.5 and PRC spring upgrades. The price does NOT include the cylinder head castings!

PRC's stage 2.5 Cylinder Head Porting service come standard with 2.02"/1.575" Stainless Steel Valves.


All PRC cylinder heads are extensively researched and tested. The flow data below shows the superior performance of the PRC stage 2.5 LS6 cylinder heads!

 3.910" Flow Plate - No Exhaust Pipe

Lift Intake Flow Exhaust Flow
 .200"  147 cfm  114 cfm
 .300"  209 cfm  152 cfm
 .400"  258 cfm  191 cfm
 .500"  294 cfm  207 cfm
 .600"  316 cfm  226 cfm



    With all PRC cylinder heads, quality and performance are our two highest priorities! In addition to performance, you will not find a better performing cylinder head porting service at this price.  Call one of our sales consultants today if you have any questions or if you would like to discuss your specific application.

    *Select Stage  
    *Head Castings  
    *Spring Kit  

    Base Price: $750.00
    Customized Price: $750.00

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    Related Tags: (Customer   1.0   2.5   215cc   225cc   227cc   235cc   237cc   247cc   265cc   285cc   3   3.9"-4"   400+CFM   5.3L   6.0L   65cc   7.0L   72cc   74cc  
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