Modified COMP Cams Magnum Rocker Arms Parts

A guide to choosing the right camshaft for your engine. See how to install a new LSR roller camshaft while upgrading valve springs and rocker trunnions.

Expert techs Austin and Pat talk about some of the race car body parts we have to offer and the aerodynamic benefits they can add to your modified.

An LS cam swap can yield big power gains. And, you can do it at home. Here's how...

Learn a few tips on how to properly mount Modified bodies and some products that will help get your race car body fabrication job done!

Learn how replace lower and upper rear control arms. Read up on racer Steve's A-body control arm replacement and the bushings included kit he recommends.

Have a 1970-1994 GM A- or X-body in need of some new lower control arms? Take a look at what Speedway Motors' employee Steve L. has to say about our lower control arms!

Looking for a cost effective way to upgrade the front of your car? This article shows the steps to replace upper and lower stock control arms with tubular control arms for added suspension strength.

Save some weight by swapping in some upgraded control arms! Employee Steve L. reviews the 1970-81 Camaro Upper Control Arm.

What happens when you advance or retard a camshaft? In this tech article, we explain the pros and cons of installing your cam straight up, advancing or retarding.

This article demonstrates how to install a complete Winters quick change kit with additional parts including birdcages, brackets, and calipers for a modified race car.