Perfect for initial break-in, these Ultra-Gold ARC rockers for Chevrolet Small Blocks reduce 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.
These Ultra-Gold Aluminum Break-In Rocker Arms from COMP Cams are designed with a lower-than-stock ratio to help break in new Chevrolet V8 Small Block applications. Engineered with a 7/16" Stud diameter and 1.3 ratio, these Ultra-Gold Aluminum Break-In Rocker Arms eliminate the excess open spring pressure, making them the new Gold Standard for the break-in process.
