Thorp Air Command - T18.net

Anybody know where I can find a flywheel for an O-320. I have an O-290-D2 but no flywheel in my project, but a flywheel for this engine is virtually non-existent. I talked with Don George down in Orlando and he said that I could/should use one from an O-320, but wanted to see what you folks thought. He said the hub on the O-290 has a couple of screws used for aligning (???), but that these holes were a big crack point. I don't know, but I figure some of you will be able help me and point me in the right direction.

Thanks!!!

Frank Barnett