4L80E, Automatic Transmissions

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

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

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

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.

The LS swap is no doubt still going strong, but if you’re planning to run an automatic behind your 4.8, 5.3, or 6.0L LS-powered ride, you’ll need to pay attention to a few items we discuss in this buyer’s guide.

Day Three is in the books of the Speedway Motors Week to Wicked 1952 Chevy build. Progress today included putting the engine and tranny where they belong and continued work on the wiring.

Learn how to convert an engine using a Carbureted LS Conversion Kit, along with tips for a smooth install. Read more on the manifold and timing control module, which comes with an MSD ignition control box and wiring harness.

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.

We show you how to keep that old GM transmission when swapping in an LS engine. Our LS swap adapter kits make it easy!

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