COMP Cams Ultra Pro Magnum Chromoly Roller Rocker Arm - 7/16 in Stud Mount - 1.70 Ratio - Big Block Ford / Cleveland / Modified (Set of 16) Inline Oil Filter Blocks are 2-1/2"W x 5"L

Blocks are 2-1/2"W x 5"L

The neatly hidden internal shoe system provides a clean installation with superior static holding power for parking

Distributor Bracket Bolts"

2-1/4 in Primary Tubes

COMP Cams Ultra Pro Magnum Chromoly Roller Rocker Arm - 7/16 in Stud Mount - 1.70 Ratio - Big Block Ford / Cleveland / Modified (Set of 16) Inline Oil Filter Blocks are 2-1/2"W x 5"LThe Ultra Pro Magnum Roller Rocker Arms for Ford V8 Boss 302, 351C, 429 460 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. 7 ratio. The 8650 chromemoly material and arched, web like design deliver increased strength and rigidity while still reducing the moment of inertia