Chevy 4L60E to 4L80E Transmission Swap. Goodbye 4L60E, Hello 4L80E. Ken Brubaker Writer Apr 01, 2010. This 1997 Chevy Suburban has a 5.7-liter engine, 6-inch suspension lift, and 35-inch tires.

Performance Automatic offers several versions of the 4L60E transmission with horsepower capabilities ranging from 500 to 700 hp, depending on the internal upgrades and torque converter selection.

We recently had a chance to crawl all over a new ride to the Chevy High Performance stable, an LS-powered 1966 Chevelle SS clone, ... a TCI Automotive 4L60E Street Fighter transmission, ...

Our '96 Impala makes just under 500, so to avoid scattering our overdrive we upgraded our 4L60E to 4L65E specs. Here's how we did it. -Car Craft Magazine ...