General Motors used the TH350 and TH400 transmissions in the '60s. The numbers in their names aren't the only things ...

I have an '89 Pontiac Firebird. I'm going to swap its factory 305 LO3 TBI engine to a 350ci/385hp Fast Burn crate motor. What is the best option: Keep the factory 700-R4 transmission or swap to a ...

If you're a believer in the axiom "performance is automatic " and own a General Motors product, your faith will be subjected to the acid crucible of reality with GM's Turbo-Hydramatic 350 (TH350), the ...

GM’s line of Turbo-Hydramatic transmissions were some of the stoutest pieces ever fielded behind small- and big-block Chevy engines. But the TH350 and TH400 three-speed versions (and their two-speed ...

Transmission safety is a subject that doesn’t come up as often as it should. With the insane amount of horsepower being made in real-deal street cars there are some major safety concerns that need to ...