There's nothing wrong with the Mk2 bottom-end, and it will slot straight in to the Mk1 chassis.
It's just as fast to swap a complete bottom-end (probably faster) than a crank, so still a wise investment in my opinion. Only issue may be the engine/frame numbers in the States... not something we worry a great deal about here in the UK to be honest!
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Andy.
NSR-WORLD.COM
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