COMP Cams Ultra Pro Magnum Chromoly Roller Rocker Arm - 7/16 in Stud Mount - 1.60 Ratio - Small Block Ford Plastigage Fits Chevy small block and

Fits Chevy small block and Big Block

) for higher horsepower applications

Belt hook-up and release is easy with the aluminum quick release mechanism

Designed for:

MSD Crank Trigger Kit 8610 7 in

COMP Cams Ultra Pro Magnum Chromoly Roller Rocker Arm - 7/16 in Stud Mount - 1.60 Ratio - Small Block Ford Plastigage Fits Chevy small block andThe Ultra Pro Magnum Roller Rocker Arms for Small Block Ford 289 302 and 351 Windsor 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. 6 ratio. The 8650 chromemoly material and arched, web like design deliver increased strength and rigidity while still reducing the moment of