Mercury Chevy LS V8 Gen 4 5.3 Frame

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

Concerned about a transmission swap? Our engine transmission compatibility checker will help confirm what you need to make it happen.

Knowing popular engine dimensions and weights are critical to a successful engine swap in your project vehicle

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!

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.

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

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

Not only is Greg Turner's '56 a great driver, it's full of great family memories. Built in the home garage by Greg and his sons, this clean Chevy has covered a lot of miles.

Derek kicks off his 55 Chevy rebuild with a fresh small block.

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