hi, I am in the middle of replacing a 206 in a 31 coupe with a 235. the 235 is actually shorter than the 206, but will not bolt to the 206 bellhousing, so you will need a 235 or 216 bell, the 216 bell or 235 bell has the mounting holes on the front for the orig 216 center mounts and will mount up. the oil pan will not clear the trans mount/ crossmember, I have not figured this out yet, possibly notching the pan or moving the crossmember. my orig thought was to use the torque tube, but the chev trans is weak. I build early rods and will not use late model parts so there is not many options. early packard is one and can be adapted to the torque tube. hope this helps
