[Supras] Crank snout dia. and flywheel fitment?

[Walker, Brian (Rich. Dist)]

We were attempting to install a new flywheel this weekend and found that
the centerbore was too small. I'm going to return the piece to the
vendor as they seem to think it is correct. The dia. I'm measuring (dig.
caliper) is 41.0mm on the crank and 40.88 on the flywheel bore, the
stock flywheel is showing right around 41mm. I'm being told that the FW
is only for a US engine in which case I thought all 7ms were (although
many assembled in Japan)

Does anyone else have a measurement for the dia at the rear of the
crank? Evidently others have not had issues with fitment.
Thanks,
Brian