The 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 bearings and hardened roller tips. And they work with most diameter springs and retainers. The new XD design utilizes advanced FEA and CAD design and development to improve strength, stiffness and MOI optimization for drag and circle track applications.
For Boss 302, 351 Cleveland and 426-460 Big Block Ford applications; 1.73" Ratio, 7/16" Stud; Machined billet pushrod seat insert; 8650 steel construction outlasts and outperforms other rockers in accuracy and strength; Ultra Pro Magnum XD Rocker Arm bodies are guaranteed against breakage for life
Machined from 8650 steel with a billet pushrod seat insert, these Ultra Pro Magnum XD rockers can handle up to 1,000 lbs of spring pressure. These 1830 rockers feature a 1.73 ratio for use with 7/16" stud Ford Boss 302, 351C and 429-460.
COMP Cams Ultra Pro Magnum XD Roller Rocker Arms, 1.73 Ratio, 7/16" Stud Diameter for 351C and Big Block Ford
Ford, 351, 351 Cleveland, 400, 351 Modified, 400 Modified, Ford F100, Mach 1, Mustang
Ultra Pro Magnum XD Rockers w/ 1.73 Ratio Ford Boss 302, 351C, 429-460 7/16 Stud
COMP Cams Rockers FC 1.73 7/16in Ultra Pro
Rockers, FC 1.73 7/16" Ultra Pro Mag XD
Ultra Pro Mag XD Rockers 1.73 Ford Boss
Engine Rocker Arm
None
