COMP Cams Ultra Pro Magnum XD Chromoly Roller Rocker Arm - 7/16 in Stud Mount - 1.70 Ratio - Big Block Chevy 4x4 Driveline Components Our 1¾-27 Spline Quick Change

Our 1¾-27 Spline Quick Change Sprocket Carrier is CNC machined from 7075 Aluminum for extra strength and weighs in at

HIGH FLOW POWER PLUS SERIES 70MM THROTTLE BODY AND EGR SPACER KIT INCREASES AIRFLOW TO IMPROVE HORSEPOWER AND THROTTLE RESPONSE OVER STOCK

3L engine swaps or all out

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

COMP Cams Ultra Pro Magnum XD Chromoly Roller Rocker Arm - 7/16 in Stud Mount - 1.70 Ratio - Big Block Chevy 4x4 Driveline Components Our 1¾-27 Spline Quick ChangeThe 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