Speedway Motors GMC 100 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.

In this Tech Tip, John answers a customer question about what would be needed to swap some additional power in place of his anemic 233c.i. Ford.

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

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.

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.

Jennifer Helgoth is a painter and prolific builder who has amassed an fleet of Cadillacs, including this '60 Series 62 with one amazing paint job.

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.

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.

In this Tech Tip, John responds to a customer request for our recommendations on brake kits for his ’56 F100.