What material are these rocker arms made from?

These COMP Cams Ultra Pro Magnum XD rocker arms are constructed from durable 8650 steel. This material is chosen for its strength and ability to withstand the stresses of engine operation over time.

Are these rocker arms sold individually or as a set?

This product is a set of eight rocker arms. This quantity is typically needed for a V8 engine, with four rocker arms per cylinder head.

What is the benefit of the machined billet pushrod seat insert?

The machined billet pushrod seat insert offers exceptional durability. It provides a strong and stable contact point for the pushrod, helping to prevent wear and maintain valvetrain geometry.

COMP Cams Ultra Pro Magnum XD Rocker Arms 1817-8

Name: COMP Cams Rockers CS 1.7 7/16in Ultra Pro
Brand: COMP Cams
Price: 353.61 USD
Availability: InStock

COMP Cams Rockers CS 1.7 7/16in Ultra Pro

$353.61

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

COMP Cams Ultra Pro Magnum XD rocker arms, set of 8, 1.7 ratio, 7/16" stud. Built from 8650 steel with a machined billet pushrod seat.

Key Features

This set includes eight COMP Cams Ultra Pro Magnum XD rocker arms.
Each rocker arm has a 1.7 ratio and is designed for a 7/16-inch stud.
Constructed from durable 8650 steel for long-lasting performance.
Features a unique machined billet pushrod seat insert for exceptional durability.
Includes precision-sorted needle bearings and hardened roller tips to reduce wear.
Fully rebuildable design for serviceability.

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Will this fit your vehicle?

Product Details

This set includes eight COMP Cams Ultra Pro Magnum XD rocker arms, featuring a 1.7 ratio and designed for a 7/16-inch stud. These rocker arms are built from durable 8650 steel, a strong material that holds up well over time. They are designed to fit a wide range of vehicles, including popular models like the Chevrolet Camaro, Chevrolet Corvette, and Buick Regal. The unique machined billet pushrod seat insert adds exceptional durability where it counts. These stud-mount rockers are also fully rebuildable, meaning you can service them if needed down the road. Precision-sorted needle bearings and hardened roller tips work together to help distribute the load more evenly and reduce wear, contributing to a longer service life for your engine's valvetrain. They are designed to work with most common spring and retainer diameters.

The XD design incorporates advanced engineering analysis to improve strength and stiffness. This means they are well-suited for demanding use, whether you're building a performance engine for endurance, drag racing, or circle track applications. You can expect a solid option for your engine build that balances durability with performance.