GM B-Body Buick 4.1 Engine Parts

Learn correct spark plug firing orders for SBC, LS, Mopar, AMC, and Ford V8s, and learn what the correct firing order means for performance.

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

Inside GM’s Gen V LT engine family: history, tech, and performance of each LT engine option available.

All you need to know about racing a 602 GM crate engine and the necessary parts to make a race ready engine.

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.

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

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

Follow this restoration guide as Josh breathes new life back into his Pontiac engine.

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.

Learn about GM alternator identification in our guide. We cover GM 3 wire alternators, 1 wire alternators, and externally regulated so you know what to choose.