What is the rocker arm ratio and what does it do?

This rocker arm has a 1.52 ratio. This means that for every 1.00 inch of lift the camshaft lobe provides, the rocker arm will open the valve 1.52 inches. A higher ratio like this can help improve airflow into and out of the cylinder, potentially increasing engine performance.

What is the material and construction of these rocker arms?

They are made from investment cast 8650 chromemoly steel with an arched, web-like design for strength and rigidity. They also feature oversized trunnions, precision-sorted needle bearings, and hardened roller tips for durability and smooth operation.

What is the warranty on these COMP Cams rocker arms?

COMP Cams offers a lifetime warranty on the rocker bodies against breakage. This warranty reflects the confidence in their well-built design and materials.

COMP Cams Rocker Arms 1.52 Ratio 3/8" Stud 1601-1

Name: COMP Cams Rocker Arm CS 1.52 3/8 Ultra
Brand: COMP Cams
Price: 45.95 USD
Availability: InStock

COMP Cams Rocker Arm CS 1.52 3/8 Ultra

$45.95

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 V6 and SBC engines. Features 1.52 ratio, 3/8" stud, and 850 lb spring pressure capacity.

Key Features

Fits 138+ vehicle make/model combinations.
Features a 1.52 rocker arm ratio.
Designed for 3/8" diameter studs.
Constructed from investment cast 8650 chromemoly steel.
Black oxide exterior finish helps prevent corrosion.
Includes oversized trunnions, precision needle bearings, and hardened roller tips.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

COMP Cams is well-known for making performance engine parts, and their Ultra Pro Magnum Roller Rocker Arms are a popular choice for anyone looking to improve their engine's valvetrain. These are stud-mount rockers designed for a range of Chevrolet V6 and Small Block Chevy engines, like those found in a 1985 Chevrolet Astro or a 1990 Cadillac Brougham. They feature a 1.52 ratio and a 3/8" stud diameter, which helps to open the valves more with each cam lobe rotation, potentially improving airflow and performance.

What sets these apart is their construction. They're made from investment cast 8650 chromemoly steel with an arched, web-like design that adds strength and rigidity without adding a lot of weight. This design, along with oversized trunnions, precision needle bearings, and hardened roller tips, helps ensure smooth operation and durability, even under demanding conditions. They are built to handle up to 850 lbs of open spring pressure and have a unique black oxide finish to help prevent corrosion. Plus, they're designed with extra clearance for most common spring diameters and retainers, making installation smoother.

These rocker arms come with a lifetime warranty against breakage, which speaks to their well-built nature. If you're rebuilding or upgrading your engine's valvetrain, these offer a solid option for improved performance and reliability.