Alot of ins and outs on this. I have to pull and look to see what is what first I guess. For some reason both engines seem pretty close to the same length--the new-er '56 chevy 235 seems to be only 1/2" longer than the 207. I live on a curvy coastal road and 45 or 50 is perfect for cruising in to town--only four miles away. I am day dreaming of selling fresh caught salmon out of the 34 in town. The other place I would drive to my boat is only ten miles away. So that original tranny should be good enough. As far as that bell housing --let me have some time to see exactly what transmission I have also clutch and flywheel. That is some good info you guys gave me--may take time to digest it----dave