PRC LS3 and L92 CNC Ported Heads


SKU: PRC-LS3 Category:


All Precision Race Components (PRC) cylinder heads come fully CNC-ported and machined using state-of-the-art technology.

Click Here to SEE why we build better heads!

PRC’s stage LS3 and L92 Cylinder Heads come standard with the following options:

  • Your Choice Of Valves (Stock GM 106 Grams, Stainless Valve 122 Grams, Hollow-Stem Valve 91 Grams)
  • Factory GM Valve Spring Kit
  • Completely Assembled and Milled to your Specifications
  • 65-70cc Chambers

All PRC cylinder heads are extensively researched and tested. Dyno Tested 25+HP Gains Over Stock 6.2L Cylinder Heads! The flow data below shows the superior performance of the PRC LS3 and L92 cylinder heads!


Intake Flow 

 Exhaust Flow


 154 cfm

 115 cfm


 223 cfm

 170 cfm


 282 cfm

 198 cfm


 324 cfm

 211 cfm


 351 cfm

 228 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 at this price (cost is for the pair!). Call one of our sales consultants today if you have any questions or if you would like to discuss your specific application.

Additional information

Weight 30 lbs
Dimensions 24 × 8 × 10 in
Spring Kit

Do not Install Spring Kit(Add $0.00), TSP .660" Dual Spring Kit w/ PAC Valve Springs & Titanium Retainers (add $289.99)

Valve Options

2.165"/1.59" Standard GM Valves, 2.165"/1.59" Stainless Steel Valves(Add $250.00)


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