Forged from resilient 8650 steel, the Comp Cams Ultra Pro Magnum™ XD Rocker Arms exemplify superior engineering, surpassing the longevity and performance of subpar knock-offs and imported rocker alternatives. A distinctive machined billet pushrod seat insert, integral to their exceptional durability, sets these stud mount rockers apart. Offering full rebuildability, they utilize precision-sorted needle bearings and hardened roller tips to optimize load distribution and minimize wear, ensuring an extended service life compatible with various spring diameters and retainers.
The XD design incorporates advanced FEA and CAD techniques, enhancing strength, stiffness, and MOI optimization tailored for endurance, drag, and circle track applications. Backed by a lifetime guarantee against breakage, these rocker arms attest to their exceptional durability. To safeguard quality, only accept authentic “COMP” logo rocker arms.
Part #1820* represents an individual rocker designed for Chevy Big Block V8 engines within the 396-454 cubic inch range. Featuring a 7/16" stud and a 1.7 ratio, this rocker is engineered to withstand up to 1000 lbs of open spring pressure. The billet pushrod seat insert, precision-sorted needle bearings, and advanced FEA/CAD development collectively contribute to unmatched accuracy, strength, and longevity.
Key Features:
- Billet pushrod seat insert for exceptional durability
- 8650 steel construction surpasses competitors in accuracy and strength
- Precision-sorted needle bearings for optimized load distribution and extended service life
- Advanced FEA and CAD development enhances strength and stiffness
- Engineered for endurance, circle track, and drag race applications with improved strength and durability
- Lifetime Warranty: Our commitment is so unwavering that we guarantee the rocker bodies against breakage for life!
- *Optimal performance requires the use of screw-in studs and guide plates.
- Local Pickup Available:
- No
- Local Delivery Available:
- No
- Additional Handling:
- No
