COMP Cams Ultra Pro Magnum XD Chromoly Roller Rocker Arm - 7/16 in Stud Mount - 1.50 Ratio - Small Block Chevy / GM V6 2010043 tube design provides ample exhaust

tube design provides ample exhaust flow to let your OBS Chevy truck's factory Small Block engine breathe easy

529 in Insert OD

Each ARP kit includes the correct number of fasteners for your application

Overtime the factory rubber isolators will dry out

170lb/in Spring Rate Front

COMP Cams Ultra Pro Magnum XD Chromoly Roller Rocker Arm - 7/16 in Stud Mount - 1.50 Ratio - Small Block Chevy / GM V6 2010043 tube design provides ample exhaustThe 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