I did that getting the flywheel from JEGGS. It turned out to have the same hole size as my current flywheel. Called JEGGS they called there suppliers (RAM and Mcleod) and both don't have a flywheel with a hole size of 2.167" or bigger?

Buddy has a 1970 340 with a crank of 2.165" and flywheel hole of 2.172"