GM H-Body Buick Nailhead Engine Parts

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

We can teach you some of the major differences between the Ford and GM-style T5 Flathead transmission adapter kits. We'll also walk you through choosing the correct parts in order to make this installation a breeze!

Learn about the specs of the V8 Ford Flathead Engine. Check out these Flathead firing order diagrams and torque specifications chart created by the experts.

Heath P. tells his story on how the passion for 'hot rodding' was instilled in him by his grandfather. From driving tractors on their family farm to becoming a Ford family, you are in for a good read.

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

Tim talks about the rare V8-60 engine and the parts we have to offer for one.

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.

Speedway Motors employee Steve upgraded the trailing arms on his 1976 Chevrolet Laguna with some spherical bushings.

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.

Steve provides a step-by-step guide to install the Speedway Motors GM 10-Bolt Polished Finned Aluminum Rear End Cover.