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 stresses of engine operation over time.

Do these rocker arms come as a complete set?

Yes, this is a set of 8 rocker arms, which is the correct quantity for a V8 engine like the Ford 289, 302, or 351W. They are designed for 3/8 inch studs and feature a 1.6 ratio.

Are these rocker arms compatible with different valve springs?

Yes, the design of these rocker arms allows them to work with most common diameter valve springs and retainers. This offers flexibility when building or rebuilding your engine's valvetrain.

COMP Cams Ultra Pro Magnum XD Rocker Arms 1.6 Ratio 1831-8

Name: COMP Cams Rockers FS 1.6 3/8in Ultra Pro
Brand: COMP Cams
Price: 383.27 USD
Availability: InStock

COMP Cams Rockers FS 1.6 3/8in Ultra Pro

$383.27

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 with 1.6 ratio. Made from durable 8650 steel for Ford 289/302/351W.

Key Features

Fits a wide range of Ford vehicles with 289, 302, and 351W engines.
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.
Designed to work with most common spring and retainer diameters.
Fully rebuildable design.

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Will this fit your vehicle?

Product Details

If you're rebuilding the top end of your Ford 289, 302, or 351W engine, a good set of rocker arms is crucial for proper valve operation. These Ultra Pro Magnum XD rocker arms from COMP Cams are built to handle the demands of performance engines, fitting a wide range of Ford vehicles from the 1960s through the 1990s, including popular models like the Mustang and F-Series trucks.

These rockers are constructed from strong 8650 steel, which is known for its durability and ability to outperform lesser materials. They feature a unique machined billet pushrod seat insert for added strength where it counts, and the set includes precision-sorted needle bearings and hardened roller tips. This design helps distribute loads effectively and reduces wear on the valvetrain components, leading to a longer service life. They are also designed to work with most common spring and retainer diameters, making them a versatile choice for many engine builds.

The XD design incorporates advanced engineering principles to optimize strength and stiffness, making them a solid option for endurance, drag, or circle track applications. Plus, they are fully rebuildable, which is a nice touch for those who like to maintain their own parts.