Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
COMP Cams Ultra Pro Magnum roller rocker arms for Chevy small-block V8 (265–400 ci) with Twisted Wedge heads, 3/8" stud and a 1.6 ratio designed for intake valves. Investment-cast 8650 chromemoly bodies and a black oxide finish deliver strength and corrosion resistance while the arched design reduces moment of inertia. Oversized trunnions, precision-sorted needle bearings and hardened roller tips enhance durability. Optimized clearances accept most retainers and +.050" locks and these rockers are rated for up to 850 lbs spring pressure.
COMP Cams Rocker Arm CS Tw 1.6 3/8 Ultra
