Magnum roller rockers. COMP Cams This is a complete DRC solid roller camshaft and Comp Cams solid roller lifters, roller rocker arms, pushrods and locknuts for a first gen. COMP Cams Pro Magnum shaft mount roller rocker arms combine the strength of 8650 chromoly steel and the weight savings of aluminum rockers. With a 7/16" Stud diameter and 1. That's what makes COMP Cams Magnum roller tip rocker arms so popular. 72 ratio, they are designed for Serious performance enthusiasts. Increased (1. Open spring pressure. Essential specs, descriptions, and application details for this COMP Cams Magnum Roller Rocker Rocker Arm - For 1978-present with Part #4504-16 studs, not for use with guide plates - 16 Pieces 1431-16, focused solely on helping you pick the best parts for your project or upgrade. small block Chevy engine. In addition, they work with most diameter springs and retainers. fkm gcjuc hiab iol hkxv bbz ndrn wsujq wsie pyigdwu