C4 Street Automatic Transmission Parts

Concerned about a transmission swap? Our engine transmission compatibility checker will help confirm what you need to make it happen.

There are a lot of choices when it comes to automatic shifters, and we’ll help unpack all the options and features in our automatic shifter buyer’s guide

Speedway Motors employee Pat joins us once again. This time Pat is talking to the Model A and Model T owners, specifically in regards to Moto-Meters and accessories.

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

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

The 700R4 is a great choice when it's time to upgrade your classic car or truck with an overdrive transmission. Here's what you need to know about GM's famous 4-speed automatic.

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.

Ford’s small block and big block engine families have their share of flexplate differences. We’ll show you what to look for in this buyer’s guide.

Learn how Zach replaces a transmission and breakaway converter in his 55 Chevy, with some helpful tips along the way.

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.