GMC GM LQ4 4L65E Muscle & Classic Car Parts

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

This resource contains a transmission pan shape ID chart and other tips to help with identifying GM transmissions.

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!

Making great horsepower on a budget is the LS engine family’s claim to fame, but just like any other engine, the more power you ask of it the more you’ll need to spend.

Building GM’s LQ4 6.0L Gen 3 LS engine for various power levels is easy with the right performance parts recipe.

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.

Need a little help Identifying GM Body Styles 1964-1972? Click Here!