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These COMP Cams Magnum roller rocker arms for Pontiac cover 265–455 applications with a 1.52 ratio and 7/16" studs. Constructed from 8620 chromemoly steel to resist flex, they pair a roller tip with a stiff design and precise ratio accuracy to reduce friction and improve valve lift. Recommended for street performance engines running under 350 lb open spring pressure, they provide a durable direct-fit option.
COMP Cams Magnum Roller Rocker Pontiac
