This 4L60E goes from parts to performance. Why suffer through high revs on the freeway when a modern overdrive transmission offers the best of both?

Performance Automatic demonstrates how to rebuild a 4L60E transmission with the ability to handle 500 horsepower and more torque.

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 ...

The 4L60E engine can be found under the hood of quite a few models, but it doesn't have the best reputation. Here's what the auto community has to say about it.

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.