Speedway Motors GMC K25 4L60E Parts

A real-world guide to 4L60 transmission specs, strength, and swap tips.

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

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

Whether you've never had the chance to see our warehouse or talk to the team at the counter or you've been here a hundred times, check out this behind the scene video.

The team of hot rodders and racers at our machine shop, use high quality machines to build parts for your project. Watch this video of parts being manufactured right here in Lincoln, Nebraska.

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.

Speedway Motors announced today the introduction of a new IMCA Modified Spec Racing Engine as they kick off the 2025 race season along with discounts Jan. 27-Feb. 2 to help their customers get ready for race season.

Want a little peak into where Speedway creates and test their products? Check out this video on Joe working in Speedway's Research and Development shop.

Kyle's Vette looks like it was built in a pro shop, but instead it was put together in the home shop with a lot of "hard honest work."

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.