Since it's a 427 it's going to only be one of two fylwheels(flywheel or flex plate). If the starter bolts are across and 1-short, 1-long starter bolts, it's a smller fylwheel.
If the starter bolts are diagonal and the same length, it's a larger fylwheel.(bolt was moved out of the way)
I don't remember the tooth counts, I think the small is 153, and the large is a 164, not positive.
The clutch size doesn't mater, it was to turn the higher compression motors to turn over easier.

Pat