ATK Engines GMC S15 Transmission Parts

We can teach you some of the major differences between the Ford and GM-style T5 Flathead transmission adapter kits. We'll also walk you through choosing the correct parts in order to make this installation a breeze!

We show you how to keep that old GM transmission when swapping in an LS engine. Our LS swap adapter kits make it easy!

Check out these tips on T-5 transmissions!

Looking to update that '67-'72 C10 truck with an LS swap? These motors mounts and transmission crossmember kit will make that modern powerplant and transmission fit like they came that way from the factory!

Follow Tim as he swaps tail housings and covers on a T-5 transmission

Learn how Zach replaces a transmission and breakaway converter in his 55 Chevy, with some helpful tips along the way.

Inside GM’s Gen V LT engine family: history, tech, and performance of each LT engine option available.

Exlpoded View of the Bert 1300 Late Model Racing Transmission

Learn how to swap out an LS engine with a modern fuel injected engine into a hot rod for added horsepower, fuel economy, or throttle response. View a list of parts and helpful tips to complete the installation.

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.