COMP Cams Ultra Pro Magnum Chromoly Roller Rocker Arm - 3/8 in Stud Mount - 1.60 Ratio - Small Block Ford (Set of 16) 1634-16 AF1838 When you run Wilson Manifolds

When you run Wilson Manifolds products

Reusable spacers replace the stock crush sleeve and eliminate pinion bearing failure

1975-1981 Chevrolet K20

9-13/16 in Length

945 in Wide

COMP Cams Ultra Pro Magnum Chromoly Roller Rocker Arm - 3/8 in Stud Mount - 1.60 Ratio - Small Block Ford (Set of 16) 1634-16 AF1838 When you run Wilson ManifoldsComp Cams Ultra Pro Magnum Chromoly Roller Rocker Arm 3 8 in Stud Mount 1. 60 Ratio Small Block Ford (Set of 16) The Ultra Pro Magnum Roller Rocker Arms for Small Block Ford Self Aligning applications not only live up to the lofty standards of the original Pro Magnums, but they also take stud mount rocker performance, stability and value to a whole new level. These rocker arms feature a 3 8" stud diameter and 1. 6 ratio. The 8650 chromemoly material