Chevy K10 Gen 4 LS Swap Parts

How to plan and execute a LS swap into any 1973-1987 Chevy/GMC K10 pickup truck.

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

If you're ready to swap an LS engine into you '73-'87 Squarebody Chevy or GMC truck, here's a guide to get you started and a parts list to help you get everything you need for your swap.

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!

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?

Learn the differences between Chevy 2-bolt and 4-bolt main blocks, how to ID them, key years, and whether a 4-bolt is worth it for your build

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

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

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.