Proform GMC Jimmy Engine Parts

Understand GM’s AFM system—how it operates, it’s pros and cons, common lifter failures, and your options for tuning, disabling, or full AFM delete.

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.

Take a look at a few of the rare and wonderful Chevy engines in the Museum of American Speed!

Choosing new wheels for a GMC Chevrolet truck. This project uses Speedway Motors GM Rally Wheels and new tires to enhance the appearance of the truck.

What is the best engine to swap? Discover the top engine swap options, including LS, Hemi, and Cummins, and find the best engine swap for your build.

Greg walks step by step through priming your engine.

To celebrate the upcoming 106th running of the Indianaplis 500, here's a look back at a few of the engines that have competed at the Brickyard over the years.

SEMA is a great place to see some pretty wild powerplants. Here are a few of our favorites from this year's show.

The Baja 1000 is a grueling test of man and machine. Maxima Racing Oil wanted to see how their products fared in 2022 winner Luke McMillin's trophy truck, so they followed along as his 555-inch Chevy was disassembled and inspected...

Some things are just meant to be. Jim's '39 Chevy coupe has earned its "4EVER 39" license plate.