IIRC the 400sbc is the only one that has a factory balance weight on the flywheel. All the rest of them, 194-230-250-292 and 283-307-327-350 can use the same flywheel, either 153 or 168 tooth. Balance is the same.
But you have to make sure the starter & mounting holes match the flywheel you have, either the 153 or the bigger 168 tooth.
One other catch, some of the 292 used 7/16 bolts and some used 1/2 bolts. IIRC all the 194-230-250 were 7/16 bolts.
If we were talking Ford here we would need an entire book to cover this topic!
