Perfect for initial break-in, this Ultra-Gold ARC rocker for Chevrolet Small Block reduces valve lift by limiting the rocker ratio to 1.3. A great asset to engine builders who prefer to limit the valve lift over removing an inner spring.
This Ultra-Gold Aluminum Break-In Rocker Arm from COMP Cams is designed with a lower-than-stock ratio to help break in new Chevrolet Small Block applications. Engineered with a 7/16" Stud diameter and 1.3 ratio, this Ultra-Gold Aluminum Break-In Rocker Arm eliminates the excess open spring pressure, making it the new "Gold Standard" for the break-in process.
