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The COMP Cams Ultra Pro Magnum single-bolt-down rocker for cathedral-port LS1/LS2/LS6 applications is an 8650 chromemoly arm with a black oxide finish and a 1.8:1 ratio. Designed for non-adjustable pedestal mount engines, it increases stiffness and lift over stock without swapping cams. The robust construction, needle-bearing fulcrum and hardened roller tip help improve valvetrain response under higher spring loads while maintaining reliable operation.
COMP Cams Rocker Arm GM LS1LS2LS6 1.8
