COMP Cams Ultra Pro Magnum XD Chromoly Roller Rocker Arm - 7/16 in Stud Mount - 1.50 Ratio - Small Block Chevy / GM V6 2010043 With seven layers of progressively

With seven layers of progressively finer mesh cotton gauze/synthetic media between 100-percent polyurethane top and base

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

Overtime the factory rubber isolators will dry out

529 in Insert OD

LS3 Plate System

COMP Cams Ultra Pro Magnum XD Chromoly Roller Rocker Arm - 7/16 in Stud Mount - 1.50 Ratio - Small Block Chevy / GM V6 2010043 With seven layers of progressivelyThe 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