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The COMP Cams Ultra Pro Magnum full set of 16 bolt-down rockers for LS3/L99/L76 rectangle-port heads includes 1.8:1 ratio, non-adjustable pedestal-mount rockers with investment-cast 8650 chromemoly construction and a black oxide finish. The set increases stiffness and lift versus stock, and uses needle-bearing fulcrums and hardened roller tips to lower friction and improve valvetrain durability in demanding applications.
COMP Cams Rocker Arms GM LS3 1.8 Bolt D
