GMC 3500 Engine Service

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!

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

BluePrint crate engine warranty details.

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

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

Speedway Motors employee Tim M. decided to take us along as he takes another step in restoring a '32 Ford. This go-round he repairs an original '32 grille insert to put in his new shell.

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.