What material is this pushrod made from?

This pushrod is made in the USA from one-piece, heat-treated chromemoly tubing. This material is stronger than typical 1000 Series steels and is designed to handle extreme valve train setups.

What is the advantage of the 7/16 inch diameter and .165 inch wall thickness?

The 7/16 inch diameter offers improved stiffness and a higher natural frequency, which is beneficial in applications with ample intake port and lifter clearance. The .165 inch wall thickness is significantly stiffer and stronger than common .080 or .125 inch wall designs.

What is the purpose of the radius on the ball ends?

The radius on the 5/16 inch ball ends provides additional clearance for the rocker adjuster at high lift. It also allows the pushrods to be installed in either orientation, 'up' or 'down'.

COMP Cams 8629-1 Pushrod 8.850in Straight 7/16

Name: COMP Cams Pushrod 8.850in Straight 7/16
Brand: COMP Cams
SKU: comp-cams-comp-cams-pushrod-8-850in-straight-7-16-t14-4394707
Price: 19.38 USD
Availability: BackOrder

COMP Cams Pushrod 8.850in Straight 7/16

$19.38

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 is known for high-performance valvetrain components. This 8.850in straight pushrod is made from heat-treated chromemoly tubing with a .165in wall.

Key Features

Made in the USA from one-piece, heat-treated chromemoly tubing.
7/16 inch diameter offers improved stiffness and higher natural frequency.
Consistent .165 inch wall thickness, even in the tapered ends.
5/16 inch ball ends with a radius provide additional clearance for rocker adjusters.
Incorporates technology originally developed for NASCAR and NHRA race engines.
Straight 8.850 inch length.

⚠️ 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

Secure CheckoutFast Shipping631-982-0042

Product Details

COMP Cams is a well-known name in performance engine parts, especially for their valvetrain components. This particular pushrod, part number 8629-1, is built with technology originally developed for NASCAR and NHRA race engines, where pushrods can experience impact loads up to 7500 lbs. It's designed to handle extreme valve train setups better than standard pushrods.

This pushrod measures 8.850 inches long and features a 7/16 inch diameter, which offers improved stiffness and a higher natural frequency compared to smaller diameters. The wall thickness is a consistent .165 inches, even in the tapered ends, making it significantly stiffer and stronger than common .080 or .125 inch wall designs. It's made in the USA from one-piece, heat-treated chromemoly tubing, a material that's stronger than typical 1000 Series steels. The ends have a 5/16 inch ball shape with a radius, which helps provide extra clearance for the rocker adjuster at high lift and allows the pushrod to be installed either way.