What is the stud diameter for these rocker arms?

These COMP Cams Ultra Pro Magnum rocker arms use a 7/16" stud diameter. It's important to ensure your cylinder heads are drilled for this size stud before installation.

What is the benefit of the roller tip design?

The roller tip on these rocker arms significantly reduces friction at the valve stem compared to a standard flat tip. This allows for more efficient valve operation and can contribute to improved performance and valvetrain longevity.

What is the warranty on these rocker arms?

COMP Cams offers a lifetime warranty on the rocker bodies against breakage. They are designed to handle up to 850 lbs of open spring pressure.

COMP Cams Rocker Arms 1.6 Ratio 7/16" Stud 1605-8

Name: COMP Cams Rocker Arms CS 1.6 7/16 Ultra
Brand: COMP Cams
Price: 287.80 USD
Availability: InStock

COMP Cams Rocker Arms CS 1.6 7/16 Ultra

$287.80

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 rocker arms for Chevy V8 engines. 1.6 ratio, 7/16" stud. Investment cast chromemoly body.

Key Features

Fits a wide range of Chevrolet V8 engines, including Camaro, Corvette, and C10 models.
Features a 1.6 ratio to increase valve lift for improved engine performance.
Constructed from investment cast 8650 chromemoly steel for increased strength and rigidity.
Arched, web-like design reduces moment of inertia and optimizes dynamic balance.
Unique black oxide exterior finish helps prevent corrosion and increases durability.
Includes oversized trunnions, precision-sorted needle bearings, and hardened roller tips for smooth operation.

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Will this fit your vehicle?

Product Details

If you're rebuilding the top end of your Small Block Chevy, getting the valvetrain dialed in is crucial. These COMP Cams Ultra Pro Magnum roller rocker arms are built to handle the demands of performance engines, offering improved stability and durability over stock components. They feature a 1.6 ratio, which helps to increase valve lift for better cylinder filling and potentially more power.

Constructed from investment cast 8650 chromemoly steel, these rocker arms have an arched, web-like design that makes them strong and rigid without adding unnecessary weight. This design also helps reduce rotational inertia, which can lead to better engine response. The unique black oxide finish not only looks good but also helps prevent corrosion, adding to their longevity. Inside, you'll find oversized trunnions, precision-sorted needle bearings, and hardened roller tips, all working together for smooth operation and reduced friction at the valve tip. COMP Cams designed these with optimized clearances so they work with most common spring diameters, retainers, and +.050" locks, making installation smoother.

This set is designed for a wide range of Chevrolet V8 engines, including popular applications like the Camaro, Corvette, and C10 trucks from the 80s and 90s. They use a 7/16" stud diameter, so be sure to check your existing setup. COMP Cams backs these with a lifetime warranty against breakage, so you can install them with confidence.