These COMP Cams Ultra-Gold Aluminum Break-In Rocker Arms with a 7/16" stud diameter and 1.3 ratio are designed for Chevrolet V8 265-400 applications. They aid the break-in procedure with lower than stock ratios by eliminating the excess open spring pressure during the break-in process
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
