Chevy Blazer Chevy LS V8 Gen 4 5.3 Frame

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.

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!

Upgrading to (or updating a poorly designed) independent front suspension, or IFS, will vastly improve your classic muscle car, hot rod, or pickup truck’s braking and handling

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.

In this episode of our C10 build series, we swap cams in a junkyard 5.3 and make surprisingly big power.

Decode small block Chevy engine suffix codes and block casting numbers with our SBC decoding info guide. Learn how to find and decipher your small block Chevy engine codes quickly and easily!

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