Help with Torqueflite 904

I haven't ever seen a Sapporo so I can't say for sure but if a regular 904 bolted up and the trans mount and shifter and driveshaft all bolted right up it sure makes me think they are the same 904 except maybe they changed the bellhousing to mate up to the 4 cyl.

Sounds like Dan used a 904 from a different vehicle too. Like the one he got the 318 from.

Now to answer your last question. "Is ther perf. parts avail". Good question?? There are for V8 904's and I bet the internals are the same other than they might have made some valve body programming chages for the 4 cyl. but since I don't have one to look at I can't say for sure. Is there any way you can post pictures of it? Maybe I can tell more then.