COMP Cams 19004-8 - Rocker Arms, Ultra Gold ARC SB C 7/16" 1.

COMP Cams Ultra-Gold Aluminum Roller Rocker Arms, 1.5 Ratio, 7/16" Stud Diameter for Small Block Chevrolet, Set of 8 These COMP Cams Ultra-Gold Aluminum Roller Rocker Arms with a 7/16" stud diameter and 1.5 ratio are designed for Chevrolet V8 265-400 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. For Small Block Chevy applications with 7/16" studs, 1.5 Ratio; Designed for high performance street and race engines; Precision-sorted trunnion bearings withstand elevated valve spring pressure and valve lift; Additional clearance, up to 1.650" O.D. valve spring;