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COMP Cams Ultra Pro Magnum XD 1.55 ratio rocker arm fits Chevrolet V6 and 265–400 Small Block engines using 7/16" studs. Built for consistent valve motion in street and racing conditions, it improves stiffness and service life. Machined from 8650 steel with a billet pushrod seat, precision-sorted needle bearings and hardened roller tips, these rebuildable stud-mount rockers work with most spring diameters and handle heavy spring pressures.
COMP Cams Rocker CS 1.55 7/16in Ultra Pro
