head swap 1972 to 1978 650.

[V mac]

Hello. I know some of you guys know the answer to this, Iwould like to know if I can take a head from a 1978 650 to a 1972 650 engine. If I use the 1972 cam and chain.
I am restoring a 1972 sx2 but the I think it was blown up at one time. There seems that someone has tried to weld it at one time. It runs fine but leaks in a spot where it shouldnt. Thanks for your time.













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[azman857]

I see no reason it wont work. There are minor differences between the two heads but nothing to stop the swap.