COMP Cams 19048-16 - Rocker Arms, Ultra Gold ARC FS 3/8" 1.72

COMP Cams Ultra-Gold Aluminum Roller Rocker Arms, 1.72 Ratio, 3/8" Stud Diameter for Small Block Ford These COMP Cams Ultra-Gold Aluminum Roller Rocker Arms with a 3/8" stud diameter and 1.72 ratio are designed for Small Block Ford 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 Ford applications with 3/8" studs, 1.72 Ratio; CNC-machined, lightweight design removes weight and yields unrivaled quality and ratio accuracy; 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