PSI Conversion 5.3 LS

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

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

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

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!

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

Learn about performing an LS Swap in a 1972 Chevelle in this tech article. We'll discuss lessons learned from our Chevelle engine swap using a 500-horse 6.0.

The 4.8 LS engine is a salvage yard bargain vs the typical 5.3 or 6.0 LS and can still make great power for your LS swap needs.

Build a high-performance Gen V LT engine with proven power combos and learn about LT upgrades and tuning tips for maximum power

An LS cam swap can yield big power gains. And, you can do it at home. Here's how...

The small block Chevy is still a great option for your muscle car, hot rod, or classic truck, just follow our build lists