4th Gen GM F-Body Crankshaft Main Bearing Cap Hardware

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!

Need a little help Identifying GM Body Styles 1964-1972? Click Here!

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.

Decode, ID, and upgrade your GM 12-bolt rear end. Learn axle specs, gear ratios, and best performance parts upgrades.

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.

Read a step by step on how to grease your bearings after racing and the importance of bearing maintenance through out race season.

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.

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.

Tips and tricks to pull the most from your GM 602/604 platform.

What happens when you advance or retard a camshaft? In this tech article, we explain the pros and cons of installing your cam straight up, advancing or retarding.