These Comp Cams Ultra-Gold ARC rockers for Chevrolet Small Block are purpose-made for initial break-in, reducing valve lift with a 1.3 ratio to limit lift without removing inner springs. The extruded aluminum design, refined with FEA, improves stiffness and oiling while staying lightweight. Constructed in the USA and rated for high spring pressures, they carry the manufacturer's lifetime warranty.
COMP Cams Rocker Arms Ultra Gold SBC