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Vehicle Info NeededUltra Pro Magnum XD Rocker Arm Big Block Chevy 396-454
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Lowest Price Guarantee- Ultra Pro Magnum XD Rocker Arm
- Big Block Chevy 396-454
- 1.7 Ratio
- 7/16" Stud
- 1/pkg
- 8650 Steel Construction
- Outlasts And Outperforms Other Rockers
- Unique Machined Billet Pushrod Seat
- FEA And CAD Development
- Improved Strength And Stiffness
- Rebuildable Design
- Engineered For Use In Endurance/Circle/Drag Race
- Lifetime Warranty
Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572
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. This 1820 rocker features a 1.7 ratio for use with 7/16" stud Chevrolet 396-454 Big Block.
The next design evolution of Hi-Tech Stainless Steel Roller Rocker Arms is built to outlast and outperform in accuracy and strength. Ultra Pro Magnum XD Rocker Arms are engineered from durable 8650 steel and have a machined billet pushrod seat insert for super accurate ratios. A unique and wide ratio range is available to fit almost any popular application from 1.5 to 1.73 in .5 increments for Chevy and 1.6 to 1.73 for Ford. These XD Rockers are 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 development to improve strength, stiffness, and MOI optimization for drag and circle track applications.
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Features:
- 8650 steel construction outlasts and outperforms other rockers in accuracy and strength
- Machined billet pushrod seat insert for a wide range of rocker ratios used in popular Chevy and Ford applications
- Precision-sorted needle bearings better distribute the load and reduce wear for longer service life
- Engineered for use in endurance, circle track, and drag race applications with improved strength and durability
