Ok i am new to this I have a 650 sn sj and was wanting to put a bigger motor in it can I use the 6m6 case and crank since they are all the same crank and put new cylinders and pistons on it will this work?
the 650 case will limit performance even if you do modify it to fit bigger cylinders. Pick up a 61x case at least. you could find a good set for 50 - 70 dollars.
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