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COMP Cams Ultra Pro Magnum XD 1.5 ratio rocker arm for Chevrolet 265–400 Small Block engines uses 1/2" studs to boost valve train stiffness and stability. Designed to be used with the COMP Hi-Tech 1/2" Rocker Stud Kit, these stud-mount rockers are machined from 8650 steel and include a billet pushrod seat insert for accurate ratio. Precision-sorted needle bearings, hardened roller tips and a rebuildable design support high spring pressures and long service life.
COMP Cams Rockers CS 1.5 1/2in Ultra Pro
