GM's 4L80E overdrive automatic is the latest in a continuing legacy of rugged Turbo-Hydramatic transmissions from Chevrolet. Fifty years ago, the TH350 and the TH400 transmissions were a new ...

It's the 4L80E that’s become the go-to choice for backing a big-power/big-torque engine, and for good reason. With its roots in the TH400, which was used with GM’s biggest-torque big-block engines of ...

Seems like today the debate between going with a stick or an auto in a classic Chevy is more heated than ever. With the advent of better electronics, mechanical innovations, and the natural ...

4L80Extraordinary! - GM’s race-tested-tough, street/strip overdrive automatic from Performance Automatic is the latest in a respected pedigree GM’s 4L80E overdrive automatic is the latest in a ...