COMP Cams Ultra Pro Magnum XD Chromoly Roller Rocker Arm - 7/16 in Stud Mount - 1.60 Ratio - Small Block Ford RS004C0413 Recommended intake gasket: Edelbrock #7235

Recommended intake gasket: Edelbrock #7235

Self centering alignment improves 2nd to 3rd up-shift gear changes to reduce the chance of missed shifts

Amalie Elixir Full- Synthetic Motor Oil has been carefully developed to meet the most current API Service Classification

Lightning quick 10 Hz signal update rate is the fastest available

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COMP Cams Ultra Pro Magnum XD Chromoly Roller Rocker Arm - 7/16 in Stud Mount - 1.60 Ratio - Small Block Ford RS004C0413 Recommended intake gasket: Edelbrock #7235The 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