Speedway Motors Mercury Comet 4L60E Parts

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

How to replace sway bars in a Mercury Comet and the advantages that come with it.

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

Mike's Cyclone was a rare bird when it left the factory, and it's led an amazing life since then! Mike's goal is to go 200 at Bonneville in a car that has done Hot Rod Power Tour and has logged a ton of street miles...

Learn about 'Speedy' Bill's passion for pedal cars and how that has been passed down through generations in the Smith family. Jess also explains the step by step process to assemble Speedway's Murray Comet style pedal car.

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

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.

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."

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, a manufacturer, retailer and distributor of high-quality automotive parts and racing products, announced four recent promotions within the company.