Sandcast Frame and Upper cases on eBay

[vnz00]

For those after another project:
http://cgi.ebay.com/ebaymotors/Honda-CB750-Sandcast-Frame-genuine-sandcast-1969-/250885305690?pt=US_motorcycles&hash=item3a69edf55a#ht_500wt_948

Regards,
Steven

[Steve Swan]

Does any one have experience or know of un-matched upper/lower cases being used to complete an engine ?  

Attempting to fit random crank and trans.shafts to upper and lower cases that were not line bored as a pair, I have to believe would create clearance/tolerance problems.  I'd think cases and shafts were "matched" at the factory.

[markb]

I don't think the cranks were matched but the cases certainly would have been.  I think trying to match a lower case would be very difficult.