1978 GMC G35 Engine Control Modules

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!

Engine Cylinder Numbers

How does a cooling system work? Why is your engine overheating? What parts should you be giving your attention to? This guide answers all your questions.

Early Ford Bolt-on Brake Conversion

Some key considerations for designing your own fuel system. We cover fuel pressure and volume, fuel pressure regulators and fuel lines.

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.