These COMP Cams Ultra-Gold Aluminum Roller Rocker Arms with a 7/16" stud diameter and 1.65 ratio are designed for Pontiac 265-455 applications. The new modern design features of these Ultra-Gold Rockers are proven to withstand extremely aggressive spring pressure and valve lift. Designed specifically for high performance street and race engines, the Ultra-Gold Aluminum Rocker Arms are precision CNC-machined to strict tolerances. Developed to meet the demands of professional engine builders, these rockers include features never before possible in an aluminum rocker arm.
