COMP Cams Ultra Pro Magnum Full Roller Rocker Arm - 7/16 in Stud Mount - 1.52 Ratio - Chromoly - Small Block Chevy - Set of 16 FLEX-BOOM-AV BMR's S550 upper control arms

BMR's S550 upper control arms add no noticeable NVH

Dart blocks are loaded with features you won't find in any factory casting

Nitro Stick

962 in Long

belt clip holster

COMP Cams Ultra Pro Magnum Full Roller Rocker Arm - 7/16 in Stud Mount - 1.52 Ratio - Chromoly - Small Block Chevy - Set of 16 FLEX-BOOM-AV BMR's S550 upper control armsThe Ultra Pro Magnum Roller Rocker Arms for Chevy V8 265 400 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 7 16" stud diameter and 1. 52 ratio. The 8650 chromemoly material and arched, web like design deliver increased strength and rigidity while still reducing the moment of inertia and optimizing