On a recent excursion to Mississippi, CIRCLE TRACK swung by the TCI plant and got a first hand look at the process for building a TH350. Fitted to millions of street cars, turbo-hyrdomatic 350s are lightweight, easy to install, and lend themselves well to engine and transmission swaps. While in stock form, they are best suited for use behind mild small blocks and smaller engines such as V6s. However, TCI has a line of TH350s that can handle over 600 normally aspirated horsepower. That beefiness makes the TH350 the trans of choice for many street/hobby stock classes around the country. We were so impressed with TCI's operation that it gave us an idea, but you'll have to stay tuned to the next issue to find out what that idea is. So until then check out TCI's process for building a TH350.
