| Re: 472 and 425 tranny differences
Many TH400s built before 1968 were SWitch Pitch. The beauty of a SWP is ability to give a little more performance, a little more smoothness, and a touch more economy. Only the torque converter is different, with ability to change between high stall (performance) and low stall (economy) to improve driveability. It reduced my 0-60 by 10%, and brought complements on how smooth the car was. Its just a little like a lockup torque converter.
Bruce Roe |