What material are these rocker arms made from?

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

Are these rocker arms rebuildable?

Yes, these rocker arms are fully rebuildable. This means you can service them if needed, potentially extending their service life even further.

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

The unique machined billet pushrod seat insert offers exceptional durability. It helps to ensure proper alignment and withstand the forces applied by the pushrod, contributing to a longer service life for the rocker arm.

COMP Cams Ultra Pro Magnum XD Rocker Arms 1.7 Ratio 3/8in St

Name: COMP Cams Rockers FS 1.7 3/8in Ultra Pro
Brand: COMP Cams
Price: 354.36 USD
Availability: InStock

COMP Cams Rockers FS 1.7 3/8in Ultra Pro

$354.36

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, 3/8in stud, 8650 steel. Fits many Ford V8 engines.

Key Features

This set includes eight Ultra Pro Magnum XD rocker arms.
Each rocker arm has a 1.7 ratio and is designed for 3/8 inch studs.
Constructed from durable 8650 steel for long service life.
Features a unique machined billet pushrod seat insert for exceptional durability.
Includes precision-sorted needle bearings and hardened roller tips to reduce wear.
Works with most common diameter springs and retainers.

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Will this fit your vehicle?

Product Details

This set includes eight Ultra Pro Magnum XD rocker arms from COMP Cams, featuring a 1.7 ratio and designed for 3/8 inch studs. These rockers are built from durable 8650 steel, a strong material that's known to last. They are designed to fit a wide range of Ford V8 engines, including popular models like the 289, 302, and 351 Windsor. You'll find a unique machined billet pushrod seat insert, which adds to their exceptional durability and helps keep things aligned.

What sets these apart is the precision-sorted needle bearings and hardened roller tips. These components work together to better distribute the load across the valvetrain and reduce wear, meaning you get a longer service life out of them. They're also designed to work with most common spring and retainer diameters, making installation more straightforward. The XD design itself has been developed using advanced computer modeling to optimize strength and stiffness for demanding use.

These rocker arms are fully rebuildable, so if you ever need to service them, you can. They are a solid option for anyone looking to improve their engine's valvetrain performance and durability.