HH, thanks for the reply. I really like the idea that a Nissan SD-33T is a 3.3L I6 and that it will bolt to a Chrysler big block trans (SAE 4) but did they make them past 1988? That is what my best research has turned up!? I would like something newer if at all possible.

I looked deeply at the Isuzu 3.9L 4BD2TC (and 4BD1T) earlier but, at the time, decided against it because I wanted a smaller, lighter engine but I may have to come back to it again. I also wanted an I6. Does anyone know the SAE bellhousing for this engine? What transmissions will it connect to GM, Ford, Chrysler, etc? I have read that the 4BD2TC is a direct injection engine, is that true? Parts seem very available for this engine, that is a big plus.

Mercedes may be out due to all the electronics, key sensing, etc. And a lack of compatibility with any american transmissions.