COMP Cams Ultra Pro Magnum XD Chromoly Roller Rocker Arm - 7/16 in Stud Mount - 1.60 Ratio - Small Block Chevy / GM V6 Microphones 1963-1964 Dodge 440 Base CID

1963-1964 Dodge 440 Base CID 383 Naturally Aspirated GAS

Gaskets are precision die-cut to ensure a leak free seal

Ultra-Duty™ Starter (Reverse Mount / Reverse Rotation)

12 ft Handheld Remote

035” thick shims in a convenient kit

COMP Cams Ultra Pro Magnum XD Chromoly Roller Rocker Arm - 7/16 in Stud Mount - 1.60 Ratio - Small Block Chevy / GM V6 Microphones 1963-1964 Dodge 440 Base CIDThe 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