Cadillac CT4 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!

Save some weight by swapping in some upgraded control arms! Employee Steve L. reviews the 1970-81 Camaro Upper Control Arm.

Questions about what you will need for your fuel sytstem? Click here!

Professional insight on some useful crate engine tools that will improve your engine building experience.

Engine Cylinder Numbers

There's a right and wrong way to run a two-barrel carburetor on your vintage engine. Check out this guide about how to select the correct carburetor for your Flathead or vintage engine.

Make Your Engine Stand Out with These Engine Block Painting Tips

We show you how to keep that old GM transmission when swapping in an LS engine. Our LS swap adapter kits make it easy!

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.

Follow along as Jeff installs an early 700R4 transmission for the big block in his 1967 Chevelle. See how this unit is upgraded and converted to a later 30 spline style.