AC 4R70W Street Parts

Follow along as Jeff installs an early 700R4 transmission for the big block in his 1967 Chevelle. See how this unit is upgraded and converted to a later 30 spline style.

Learn the importance of maintaining the right pressure in your tires for longer wear, enhanced handling and to get better fuel economy.

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.

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

In this Tech Tip, John helps to sort out some fresh suspension for a customer’s ’70 Nova.

In this Tech Tip, John responds to a customer question about the rod end angle on his Model A 4-Bar Suspension Kit.

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

Jarry and Ryan Givens are father and son, and this pair of Novas proves the apple doesn't fall far from the tree!

This '70 Camaro is a race car with a license plate, delivering aggressive performance weekend after weekend. It also serves as a test mule for the Speedway Motors R&D team to try out new ways to go fast in a 50-year-old muscle car!

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.