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COMP Cams Ultra Pro Magnum roller rocker arms for Chevy small-block V8 with Twisted Wedge heads, 7/16" stud and 1.6 ratio for intake valves. Investment-cast 8650 chromemoly construction with a black oxide finish enhances strength and resists corrosion. The arched, web-like design lowers rotational inertia while improving rigidity. Oversized trunnions, precision-sorted needle bearings and hardened roller tips add durability. Optimized clearances accept most retainers and +.050" locks and the rockers are rated for up to 850 lbs spring pressure.
COMP Cams Rocker Arm CS Tw 1.6 7/16 Ultra
