65 Valiant swap 273 to a 360

Litz said

I would like to us the cable shifted 904 that is behind the original 273 but I don't think the converter will work with the 360 crankshaft. Or if there would be any balance issues. I don't know much about the small blocks so forgive my ignorance. Thx for the reply, Litz

Click to expand...

That would be cool but unfortunately you are correct the converter will not work. The early 904's had an 18 spline input shaft and the 67 or so ups had a 27 spline input shaft plus a larger torque converter snout diameter. Your push button also would have a zero balance converter and you will need a balanced one for your 360.
Still, you should be able to find a reputable shop to modify snout and balance your push button trans converter to mate up to a 360.
Of course it will cost $
Pat Blais transmission is a good source for early to late modification
206-365-1966