G-Body GM LH6 Frame

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.

Learn how to identfy motors for your LS Swap. In this guide we cover generation 4 small block engines and some of the cheaper options for more power.

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!

Learn about the power behind the G-body platform and the steps to upgrade a 7.5" bolt rear end to a 8.5" to withstand high horsepower. See how to change the differential fluid and install new gaskets.

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.

In this budget build, a GM rear end is upgraded in order to hold 400+ HP. See how spherical bushings are replaced in a used 8.5” GM 10 bolt rear end.

This year, the Speedway Motors SEMA booth will host Ron Ernsberger's radical Willys built by the Tin Man's Garage. It's a Hemi-powered hot rod with some classic street rod elegance thrown in, and there's much more going on here than meets the eye...