buying a new bottom end would be easier if it had a new crank in it already but just getting a bottom end to swap your top end to that is a good used bottom end might put you in the same spot down the road. The lower cranks in these blaster engines fail alot it seems so i would either do it yourself to save money or buy one already with new crank done not just get a used one.
. . im gonna rebuild my own? .. replace bearings and crank !.. then ill have a ultimate reliable engine.. 
