Speedway Motors Shelby 4L60E Street Parts

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

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

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

The dyno at the Speedway Motors Racing Engine shop is always humming. We set up a camera in the cell to catch a few of the engines that have passed through the door recently.

This new steel bellhousing from Speedway Motors is made for everyone who wants to run three pedals without spending a fortune or relying on a crusty original.

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.

Pat talks about some of the LS engine mounts Speedway Motors has to offer.

Speedway Motors was selected by Arrow Electronics to prepare Sam Schmidt’s vehicles for Optima’s Ultimate Street Car Challenge where he will race for the first time since becoming a quadriplegic in 2000.

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."

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.