COMP Cams Ultra Gold ARC Aluminum Roller Rocker Arm - 7/16 in Stud Mount - 1.50 Ratio - Gold - Small Block Chevy / GM V6 2010026 From the detailed instruction sheets

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COMP Cams Ultra Gold ARC Aluminum Roller Rocker Arm - 7/16 in Stud Mount - 1.50 Ratio - Gold - Small Block Chevy / GM V6 2010026 From the detailed instruction sheetsThese 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