904 converter

thats actually perfect because I just got a forged 273 crank from a 66, should be the right size

You would also need to be running a 66 or earlier trans as the spline count is different than the 67 and later trans. This is a Frank Lupo built unit, 3000 stall, it came out of my Commando 66 Cuda. It has about 100 miles on it, it was just too much converter for my purpose.