• 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
• 2.250"/1.610" 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 53 CFM more than the stock GM LS7 head, the all-new PRC cylinder heads offer both unmatched power and airflow! The 285cc runner is recommended for higher HP applications with a minimum bore size of 4.125".

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! Cylinder Head Specs:

Valve Angle: 12 Degree
Intake CC: 285cc
Intake Valve: 2.250"
Exhaust Valve:1.610"
Chamber Size: 70cc

LIFT INTAKE FLOW EXHAUST FLOW
.200" 169 CFM 119 CFM
.300" 248 CFM 179 CFM
.400" 311 CFM 211 CFM
.500" 353 CFM 224 CFM
.600" 386 CFM 235 CFM
.650" 393 CFM 241 CFM
.700" 407 CFM 246 CFM