Engine swap 170 to 225

Sedanman said
Try to stay from 68 and up.

That's his only option if he's got an automatic transmission he wants to keep and doesn't want to have a custom torque converter made.

The 66-7 is a 2 year only trans and crank pilot

No, it isn't. The smaller torque converter nose and matching smaller crank counterbore is '60-'67.