mixed crankcase

Hello ! Most of the main caps were identified with the motor number , on this at least i should be ok !

How many sets of cases are you working on?

Hello! i am working on 6 crankcase , i have more but only those 6 may be mismatched

Hello ! Well , bore gauge seem to be the best way therefore, the molding mark are stamped so i am sure there is relation between numbers indicated at least the first one. for exemple 92 stamped on the top must be corresponding with an other case stamped 92 . the second number is never corresponding .It would interresting to know what those numbers means.
thanks !
Eric