PRC LS7x 265cc CNC Small Bore Heads

$2,939.99

The PRC LS7 cylinder heads is available with standard stainless valves, hollow-stem intake, and titanium intake valves.  If you are going to run the stainless steel intake valves, we recommend limiting total valve lift to no more than .616" due to the weight of the intake valve.  Upgrading to the hollow-stem intake valve will shed significant intake valve weight and allow for additional lift.  The titanium intake valves will be the lightest choice of the three choices and offer the best lift possible! 

SKU
PRC265LS7SB
Requires at least a 4.065" Bore 

Precision Race Components LS7 CNC 265cc ported cylinder heads. 

  • PRC 6-Bolt LS7 Cylinder Heads with Thicker Deck Surface
  • Will Work on Both Standard GM 4-Bolt & Aftermarket LSx / RHS 6-Bolt Style Engine Blocks
  • 2.200"/1.59" Valves
  • PRC Double Spring Kit Complete With PRC Double
    Springs, Titanium Retainers, Seats, & Seals
  • Completely Assembled & Setup To Your Specs
  • Available With Stainless Steel, Hollow-Stem, or Titanium Intake Valves

Extensive CNC and dyno testing has resulted in one of the most affordable and powerful LS7-based cylinder heads available! Flowing up to 35 CFM more than the stock GM LS7 head, the all-new PRC cylinder heads offer both unmatched power and airflow!

 
The PRC Small Bore LS7 cylinder heads are designed for both stroker, and stock cube applications with a 4.060"-4.100" bore.  For bores larger than 4.100" bore checkout the PRC LS7 270cc & 285cc cylinder heads!

The PRC LS7 cylinder heads is available with standard stainless valves, hollow-stem intake, and titanium intake valves.  If you are going to run the stainless steel intake valves, we recommend limiting total valve lift to no more than .616" due to the weight of the intake valve.  Upgrading to the hollow-stem intake valve will shed significant intake valve weight and allow for additional lift.  The titanium intake valves will be the lightest choice of the three choices and offer the best lift possible! 

 

 

Superflow 600
  

 

    PRC 265cc 
LS7 Intake
  PRC LS7 Exhaust
 .200  169  118
 .300  246  176
 .400  304  208
 .500 348  221
 .600 380  230
 .650 383  235
 .700 388  240
More Information
SKU PRC265LS7SB
Manufacturer Precision Race Components
Application Guide All GenIII powered GM Vehicles
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