CB750F (SC01) crankcase on CB900F

[zaz_968]

Hello everyone
Sorry for my English
I'm from Russia
In my country, Honda CB750F and Cb900f very rare motorcycles
This help please
I have a 1982 CB900F
After the fall broke crankcase
There is a possibility to buy only from the crankcase Cb750f
Suitable for crankcase from CB750F CB900F (chain)?

 

[K2750tracy]

Welcome to the forum; my understanding from a shop that builds DOHC 750F's for racing said he put 900 cranks and transmission in the 750 case because the 900 parts are stronger. But use a later model year 750 case '82' or '83' as they have extra support webs in the case for strength, the early cases tend to twist and leak at the cylinder base when built up.

 

[zaz_968]

Welcome to the forum; my understanding from a shop that builds DOHC 750F's for racing said he put 900 cranks and transmission in the 750 case because the 900 parts are stronger. But use a later model year 750 case '82' or '83' as they have extra support webs in the case for strength, the early cases tend to twist and leak at the cylinder base when built up.

Thanks for the answer.
Read on one of the forums that set the crankshaft and transmission from 900 to 750 crankcase and cylinders 900, connecting rods from 1100 and a head of 900.
I do not need it, I want to restore my 900.
What are the problems I still can not face?