COMP Cams Ultra Pro Magnum XD 1.7 ratio rocker arm set is intended for Chevrolet 265–400 Small Block engines with 7/16" studs. These stud-mount rockers are machined from durable 8650 steel and use a billet pushrod seat insert for a precise ratio. Fully rebuildable, they feature precision-sorted needle bearings and hardened roller tips to spread load, reduce wear and support heavy springs while fitting most spring diameters and retainers.
COMP Cams Rockers CS 1.7 7/16in Ultra Pro