Turbo 400 TH400 Standard Length Output Shaft and Tail Housing Combo Whether you're overhauling an engine

Whether you're overhauling an engine or looking to upgrade your vehicle's performance

Speedmaster rear-end assemblies are the ultimate solution

Step up to the high-rpm power of an open plenum with Speedmaster HiRise intake manifolds

If you are looking for a manifold to use with your 8-71 or 6-71 supercharger

The Speedmaster high mount serpentine kit for Chevy LS engines

Turbo 400 TH400 Standard Length Output Shaft and Tail Housing Combo Whether you're overhauling an engineThese Speedmaster tailshaft housings are designed to fit the stock Turbo 400 transmissions. They are five times stronger and more ridged than stock because they are made from aircraft grade aluminum alloy. Featuring thicker walls and more gusseting than any other manufacturer.