4L70E Muscle & Classic Car Transmission Parts

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.

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.

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

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.

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

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.