Sport Mod Engine Service

Dirt modified racing delivers high-horsepower, adrenaline-fueled action, learn more about them and their racing classes

Overheating is a major cause of DNFs and damaged engines. We'll go beyond the cooling system for solutions to your overheating issues.

One of the most important parts of your racing operation is the engine. This article gives a detailed overview on how to maintain your engine to get the most out of it for as long as possible. Also learn some tips to prolong the life of your engine.

Learn what goes into setting the fuel for your engine and how to change the density altitude, ADR, main pill and high speed pressure to optimize a/f ratio.

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!

On Day Four of Racer Appreciation Week, the Speedway Motors team visited the shop of Speedway Racing Engines for a tour.

Looking to swap the venerable LS engine into your hot rod, muscle car, or classic truck? Take a look at our detailed identification guide for Gen III/IV LS engines before you hit the salvage yard or swap meet!

Speedway Motors, a manufacturer, retailer, and distributor of high-quality automotive parts and racing products, will introduce new racing products in their booth (#4101) at the 2025 PRI Show Dec. 11-13 in Indianapolis, Ind.

Devyn Peterson is an Auto Tech in the Speedway Motors Customer Experience center. He's also a racer, starting out in karts when he was just 5 years old. He moved up to a Modified when he was 13 and hasn't looked back!

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!