What is the benefit of a roller tip on a rocker arm?

A roller tip reduces friction where the rocker arm contacts the valve stem or valve spring retainer. This smoother contact can lead to slightly improved performance and less wear over time compared to a flat-tip rocker.

What material are these rocker arms made from?

These COMP Cams Magnum Roller Rocker Arms are constructed from 8620 chromemoly steel. This material is chosen for its strength and resistance to flexing, which helps ensure maximum valve lift.

What is the recommended spring pressure for these rocker arms?

These rocker arms are recommended for applications with less than 350 lbs. of open spring pressure. Using them with higher spring pressures may affect their performance and longevity.

COMP Cams Magnum Roller Rocker Arms 1418-8

Name: COMP Cams Magnum Roller Rockers Chevy S
Brand: COMP Cams
Price: 146.42 USD
Availability: InStock

COMP Cams Magnum Roller Rockers Chevy S

$146.42

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COMP Cams Magnum Roller Rockers for Chevy V8/V6. Made from 8620 chromemoly steel for maximum lift and reduced friction.

Key Features

Fits many Chevrolet and Buick V8 and V6 engines.
Constructed from 8620 chromemoly steel for stiffness and durability.
Roller tip design reduces friction for improved efficiency.
Features a 1.6 ratio for increased valve lift.
Designed for use with 3/8" rocker studs.
Suitable for applications with less than 350 lbs. open spring pressure.

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Will this fit your vehicle?

Product Details

Starting with 8620 chromemoly steel construction, these COMP Cams Magnum Roller Rocker Arms are built to resist flexing and ensure you get the most out of your valve lift. This material choice is key for maintaining stiffness under load, which translates directly to more effective valve lift and better engine performance. They feature a 3/8" stud diameter and a 1.6 ratio, designed to work with up to 350 lbs. of open spring pressure.

The roller tip on these rocker arms is a practical detail that significantly reduces friction compared to traditional flat-tip rockers. Less friction means less drag on the valvetrain, allowing for smoother operation and potentially a small increase in horsepower over stock or less advanced rocker arms. This makes them a solid option for street performance applications where improved valve lift and efficiency are desired.

These rocker arms fit a wide range of Chevy V8 and V6 engines, including popular models like the Chevrolet Camaro, Corvette, and C1500. They are a well-known choice for builders looking for a dependable upgrade to their engine's valvetrain.