What is the rocker arm ratio and why does it matter?

This rocker arm has a 1.6 ratio. The ratio determines how much the valve opens relative to the camshaft lobe lift. A higher ratio, like 1.6, generally results in more valve lift, which can improve airflow and potentially increase engine power.

What material are these rocker arms made from?

These Ultra Pro Magnum XD rocker arms are machined from 8650 steel, a strong and durable material chosen for its ability to withstand engine stresses and provide a long service life.

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

This product listing is for the rocker arms themselves. It is recommended to refer to the manufacturer's installation instructions or consult with a professional to ensure you have all the necessary hardware and components for proper installation.

COMP Cams Rocker Arms 1.6 Ratio 7/16in Stud Mount - 1826-1

Name: COMP Cams Rocker CB 1.6 7/16in Ultra Pro
Brand: COMP Cams
SKU: comp-cams-comp-cams-rocker-cb-1-6-7-16in-ultra-pro-t14-4390863
Price: 59.95 USD
Availability: BackOrder

COMP Cams Rocker CB 1.6 7/16in Ultra Pro

$59.95

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 XD rocker arms with a 1.6 ratio and 7/16in stud mount. Built from 8650 steel for improved durability.

Key Features

Fits many Chevrolet Big Block engines, including models like the Chevelle, Camaro, and Impala.
Features a 1.6 rocker arm ratio for improved valve lift.
Designed for engines with a 7/16 inch stud size.
Constructed from durable 8650 steel for long service life.
Includes a unique machined billet pushrod seat insert for added strength.
Uses precision-sorted needle bearings and hardened roller tips to reduce wear.

⚠️ 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 Big Block engine, like those found in a Chevelle, Camaro, or Impala, and need to replace or upgrade your rocker arms, these Ultra Pro Magnum XD rockers from COMP Cams are a solid option. They're designed to handle the demands of performance engines, offering improved strength and longevity over stock components.

These rocker arms are machined from tough 8650 steel, a material known for its durability. They also feature a unique machined billet pushrod seat insert, which adds another layer of strength where it counts. The roller tip and needle bearings inside help distribute the load evenly, reducing wear and extending the service life of the part. They're built to work with most common spring and retainer diameters, and they can handle up to 1,000 lbs of spring pressure, making them suitable for a wide range of engine builds.

This particular set has a 1.6 ratio and is designed for engines using a 7/16 inch stud. They fit a variety of Chevrolet Big Block engines, including those in popular models like the Chevrolet Caprice and Corvette, among others.