COMP Cams Ultra Pro Magnum XD Chromoly Roller Rocker Arm - 7/16 in Stud Mount - 1.60 Ratio - Small Block Chevy / GM V6 91619059 1989 Chevrolet R2500 7

1989 Chevrolet R2500 7

These parts are intended mainly for engines where severe crankshaft deflections cause edge loading of the bearing

Girdle design helps prevent over-tightening and includes mounting hardware

JOES Torsion arms fit the popular 7/8"-48 spline found on most Micro Sprints

Steel Steering Universal Joint

COMP Cams Ultra Pro Magnum XD Chromoly Roller Rocker Arm - 7/16 in Stud Mount - 1.60 Ratio - Small Block Chevy / GM V6 91619059 1989 Chevrolet R2500 7The next design evolution of the Hi Tech Stainless Steel Roller Rocker Arms are built to outlast and outperform in accuracy and strength. The Ultra Pro Magnum XD Rocker Arms are engineered from durable 8650 steel and include a machined billet pushrod seat insert for a wide range of super accurate ratios. A unique and wide ratio range to fit almost any popular application. These XD rockers are fully rebuildable and boast precision sorted needle