COMP Cams Ultra Pro Magnum XD Chromoly Roller Rocker Arm - 7/16 in Stud Mount - 1.70 Ratio - Big Block Chevy 4x4 Driveline Components All Holley jets are sized

All Holley jets are sized by actual flow and may vary from sizes above

2020 Chevrolet Silverado 2500 HD Crew Cab Pickup Vehicle has carpeted factory storage box

3L engine swaps or all out

Console can be Trimmed for Custom Fit

1965-1965 GMC 1000 Series

COMP Cams Ultra Pro Magnum XD Chromoly Roller Rocker Arm - 7/16 in Stud Mount - 1.70 Ratio - Big Block Chevy 4x4 Driveline Components All Holley jets are sizedThe 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