COMP Cams Ultra Gold ARC Aluminum Roller Rocker Arm - 7/16 in Stud Mount - 1.60 Ratio - Gold - Small Block Chevy (Set of 16) 12591689 This eliminates all differential movement

This eliminates all differential movement

Unlike some brands which use OEM

Offset: 4" (bend from outer edge to rod end center line)Weight: 2

Direct bolt-on to Holley cast aluminum LS valve covers with 72mm bolt spacing

Bracket modification may be required during some installations

COMP Cams Ultra Gold ARC Aluminum Roller Rocker Arm - 7/16 in Stud Mount - 1.60 Ratio - Gold - Small Block Chevy (Set of 16) 12591689 This eliminates all differential movementThese COMP Cams Ultra Gold Aluminum Roller Rocker Arms with a 7 16" stud diameter and 1. 6 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