GAIN 108HP WITH THE COMP CAMS® GEN III LS1, LS2, LS6 STAGE V PERFORMANCE PACKAGE!

Stage Five of the COMP Performance Group™ GEN III Performance Package brings the horsepower gain up to 108HP over factory LS1 specs. Stage V consists of a swap to a set of RHS™ Pro Elite™ cylinder heads. Pro Elite™ heads deliver huge horsepower gains, increased efficiency, and improved strength and stability over OE cylinder heads. Pro Elite™ 210cc heads are the ultimate street performance head with their high velocity 210cc intake runners, and the super-efficient Pro Elite™ 225cc head delivers the goods under high-rpm, max-effort street/strip conditions. Choose the Pro Elite™ Cylinder Head that’s right for you based on how you intend to use your vehicle.


RHS™ Pro Elite™ 210cc for GEN III, LS1, LS2, LS6 – Street Performance Redefined
Take the latest race winning technology to the street with the new Pro Elite™ 210cc cylinder heads -the perfect bolt on head for medium-displacement LS1 -style street engines. Ideal for 5.7 and 6.0L engines, Pro Elite™ 210cc cylinder heads have been dyno-proven to make over 500 rear wheel horsepower and over 650 flywheel horsepower in naturally aspirated trim. With a massive, thick-walled casting, Pro Elite™ 210ccs deliver superior strength and stability –even under forced induction applications! And full CNC finish machining means that these heads come fully prepped for use –simply bolt them on, and get ready to win some races!


RHS™ Pro Elite™ 225cc –The Ultimate Street/Strip GEN III Cylinder Head
Pro Elite™ 225cc heads provide outstanding horsepower and torque when used with larger displacement GEN III/LS-based engines. Every Pro Elite™ 225cc cylinder head is engineered with super-efficient combustion chambers, ports, and runners, and CNC machined to competition-ready perfection. Pro Elite™ 225cc cylinder heads are a proven producer of superb midrange and upper-rpm horsepower, and represent the ideal cylinder head for use with large cubic-inch LS-platform stroker motors. An astoundingly heavy .800" thick deck surface ensures that Pro Elite™ 225s will remain stable under even the highest turbo or nitrous-induced cylinder pressures. Designed for use with 6.0L and larger displacement engines, Pro Elite™ 225cc cylinder heads have been dyno-proven to make over 525 rear wheel horsepower, and over 680 flywheel horsepower in naturally aspirated trim.


Tech tip: Due to a deck surface that is much thicker than a factory GEN III head, OE-length pushrods will not work with RHS™ Pro Elite™ cylinder heads. Use COMP Cams® Hi-Tech™ Pushrod Length Checker #7703-1 to establish correct pushrod length.

RHS™ Pro Elite™ Cylinder Heads
For all GM GEN III, LS1, LS2, LS6: 1997-Present
Model Application Material
Valve Size
IN EX
Runner Volume
IN EX
Peak Airflow @ .600" Lift
IN EX
Pro Elite™
210cc
Street Performance
use with 5.7 and 6.0 liter LS-based engines. Hydraulic or solid roller camshafts recommended.
Aluminum 2.04” 1.57” 210cc 97cc 320 211
Pro Elite™
225cc
Street/Strip
best with 6.0 liter and larger displacement GEN III engines. Works great with hydraulic or solid roller camshafts.
Aluminum 2.04” 1.57” 225cc 97cc 328 231