What is the benefit of a 1.6 ratio rocker arm compared to a stock 1.5 ratio?

A 1.6 ratio rocker arm effectively multiplies the camshaft lobe lift by 1.6, resulting in slightly more valve lift and duration. This can lead to improved engine breathing and potentially a small increase in power, especially when paired with other performance upgrades.

Do these rocker arms come with the necessary hardware for installation?

This product includes the rocker arms themselves. It's recommended to check the manufacturer's installation instructions or consult with a technician to ensure you have any additional hardware, such as studs or guide plates, that may be required for your specific engine build.

What is the warranty on these COMP Cams rocker arms?

COMP Cams offers a lifetime warranty on the rocker bodies against breakage, demonstrating their confidence in the durability and strength of this product.

COMP Cams Rocker Arm CS 1.6 7/16 Ultra 1605-1

Name: COMP Cams Rocker Arm CS 1.6 7/16 Ultra
Brand: COMP Cams
Price: 46.95 USD
Availability: InStock

COMP Cams Rocker Arm CS 1.6 7/16 Ultra

$46.95

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 rocker arms for Chevy V6 and SBC engines. Features a 1.6 ratio and 7/16" stud for improved valve train stability.

Key Features

Fits a wide range of Chevrolet and Buick vehicles with V6 and Small Block V8 engines.
Features a 1.6 rocker arm ratio for increased valve lift and duration.
Designed for 7/16 inch stud diameter applications.
Constructed from 8650 chromemoly steel for strength and durability.
Black oxide exterior finish helps prevent corrosion.
Includes oversized trunnions, precision needle bearings, and hardened roller tips for smooth operation.

⚠️ 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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Will this fit your vehicle?

Product Details

If you're working on a Chevrolet V6 or Small Block V8 engine, especially one from the 1980s or 90s, and you're looking to get more out of your valve train, these Ultra Pro Magnum rocker arms from COMP Cams are a solid choice. They're designed to replace your stock rocker arms and offer improved stability and performance, particularly when you're dealing with higher spring pressures or looking for a bit more lift from your camshaft.

These rocker arms are built from 8650 chromemoly steel, which is a strong material that can handle up to 850 pounds of open spring pressure. COMP Cams uses an arched, web-like design that increases rigidity without adding a lot of weight, helping with the overall balance of your rotating assembly. They also feature oversized trunnions, precision needle bearings, and hardened roller tips to ensure smooth operation and reduce friction. The black oxide finish helps keep corrosion at bay, and the optimized clearances mean they should work with most common valve springs and retainers without issue.

This set is designed for engines using a 7/16 inch stud diameter and features a 1.6 ratio, which will slightly increase the lift and duration compared to a stock 1.5 ratio rocker. They fit a wide range of Chevrolet and Buick vehicles, from classic Camaros and Corvettes to trucks like the C1500 and SUVs like the Blazer.