AC Muncie 4-Speed Transmission Parts

Concerned about a transmission swap? Our engine transmission compatibility checker will help confirm what you need to make it happen.

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.

Old trucks are just meant to have manual transmissions. They're made even better with a modern overdrive like a Tremec TKX. Watch our C10 manual transmission conversion on an LS-swapped '68 to see just how easy it is to row your own gears,

Leave all the head scratching to us, as we have your manual transmission bellhousing solution for your LS swap all figured out already

Learn how Zach replaces a transmission and breakaway converter in his 55 Chevy, with some helpful tips along the way.

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

Learn what goes into setting the fuel for your engine and how to change the density altitude, ADR, main pill and high speed pressure to optimize a/f ratio.

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

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

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