GM LM4 T5 Parts

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

Both 5.3 and 5.7 LS engines are commonly sourced for LS swaps. Here's a look at some differences and similarities as well as a discussion of what might be the best choice for your project.

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!

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

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.

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

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

Comparing GM’s LS V8 engine to the high-tech LT V8 engine. Which is better for your performance needs and budget?

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.