Modified Camshaft Buttons

Speedway Motors announced today the introduction of a new IMCA Modified Spec Racing Engine as they kick off the 2025 race season along with discounts Jan. 27-Feb. 2 to help their customers get ready for race season.

Learn how to hook up a horn button in your vehicle. Watch our video on the install of an Ididit car horn button and our video on turn signal synchronization.

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!

In order to be competitive and win, it's important to find the right set up that works for you and your car. Here's some general reminders to remember during set up!

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.

Picking the right camshaft can be a challenge. Use our camshaft selection guide to learn how to select the right cam for your street rod's best performance.

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.

Learn how to lower a hot rod by modifying the axles and some history behind early hop ups. This project features a Ford axle with wishbones for a Model A.

Learn the basics to engine performance like; how does a cam work? What is Valve lift, duration, lobe separation angle, and cam profiles? Afterwords selecting the right camshaft will be less of a guessing game!