FE/FC Blew Up Fc 450

Hi All, I roadrace an FC450 in supermoto trim. I blew it up last week and destroyed the engine cases. I want to go with a bigger bore. Since I have to buy new cases, can I start with FE 501 cases? Will the transmission and any serviceable parts I have left over work? I obviously need a new crank, rods, and cylinder. I am also hoping to put be able to put my ported 450 head on as well. Will this work?

I would go into the parts diagram and check part numbers to verify. that is the definitive way to check compatibility of parts.

I'd have thought the entire bottom end would be identical between the 450 & 500 to save on manufacturing costs? Could well be wrong but I thought it was just the top ends that differ?

It used to be that the 450cc and the 510cc engines only differed by the bore. However, they have been revamped and I'm not sure any more.

Found my answer. Cases are the same. Only difference are rod length, head bolt length, cylinder height, and cam chain length. That's it if you wanna make your 450 a 501.