yeah, thats true. Put a 555 in there too if you find one.
The v6 trans must be a 413. The 670s are the OD ones, right? You can tell b/c they have a big electrical box on the front of the case. Those are shit. Stay away. Find a v6 413, the guts are all the same in them. But again, just leave it up to a prof. Have AJ build you one, or i got mine from Dave Grove.