G-Body Muncie 4-Speed Frame

There's something special about your first car. Here are a few from the Speedway Motors team.

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 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.

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

This old sedan was untouchable in the early 60's.

Learn a few tips on how to properly mount Modified bodies and some products that will help get your race car body fabrication job done!

After years of dominance with the legendary 4x sedan, "Speedy" Bill Smith and his hotshot driver Lloyd Beckman upgraded to this sleek new offset roadster for the '64 season.

This resource contains a transmission pan shape ID chart and other tips to help with identifying GM transmissions.

This is more than the story of a vintage sprint car. It's also the story of how a dynamic duo of "Speedy" Bill Smith and Jan Opperman toppled giants at the 1976 Hulman Classic.

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.