COMP Cams Ultra Pro Magnum XD Chromoly Roller Rocker Arm - 7/16 in Stud Mount - 1.70 Ratio - Small Block Ford (Set of 16) 31022 It is an excellent upgrade

It is an excellent upgrade for any pre-1968 high performance engine where oil flow is critical

Most Durable/Dependable

000 NASCAR

Cadmium / Red

and is rotationally balanced to reduce vibration and improve traction

COMP Cams Ultra Pro Magnum XD Chromoly Roller Rocker Arm - 7/16 in Stud Mount - 1.70 Ratio - Small Block Ford (Set of 16) 31022 It is an excellent upgradeThe 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