Gen 3 LS Muscle & Classic Car 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.

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!

Small block Chevy V8 or the modern LS V8? Which one comes out on top as the best engine to swap into your ride?

The 454 big block Chevy is still a popular build option for when there is no replacement for displacement!

Speedway Motors announced today they will debut their new GM Metric G-Body Frame Rail Kits alongside new racing products in their booth (#4101) at the 2024 PRI Show Dec. 12-14 in Indianapolis, Ind.

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

Who gets your pick as the best manufacturer from the golden age of the muscle car wars?

I'm sorry to have to tell you this, but the '64 GTO was not the first muscle car.

While everyone is looking for a 6.0 LS, don’t count out the original 5.7 LS1 engine for your next LS swap performance build