I was attempting on using the flywheel from the 201. The starter just barely engages, but the clutch assembly is encroaching on the back of the bell housing within dangerous tolerances. I can see now the logical solution is to put a spacer in between the block and the bell housing (4.5 mm) if I keep the 201 flywheel, bell housing and transmission. Moving the motor forward 4.5 mm should be possible without too much trouble. Are there machine shops that could make a spacer for me the would be very precise? From the reading I’ve done, the bellhousing to the block connection is very important. Thanks everyone for pitching in with your help.