TCI has products to help make unconventional engine and transmission pairings work together seamlessly, mostly due to their transmission bell housings fitting all the major engine families. TCI’s complete transmission packages offer 4-speed Overdrive automatic transmissions for nearly every engine. The 700R4 version is perfect for carb’d engines and those that prefer less electronics, while the 4L60 is ideal for those who want electronic control of shift points and firmness via the EZ-TCU.