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 Big Block Chevrolet applications; 1.6" 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 1826 rockers feature a 1.6 ratio for use with 7/16" stud Chevrolet 396-454 Big Block.
Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572
COMP Cams Ultra Pro Magnum XD Roller Rocker Arms, 1.6 Ratio, 7/16" Stud Diameter for Big Block Chevrolet
Ultra Pro Magnum XD Rockers w/ 1.6 Ratio for Chevrolet Big Block w/ 7/16" Stud
Rockers, CB 1.6 7/16" Ultra Pro Mag XD
COMP Cams Rockers CB 1.6 7/16in Ultra
1.6 Ultra Pro Mag XD Rockers BBC 7/16
Available individually under
Engine Rocker Arm
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