hi there thanks for your reply,what do you call the tourqe arm,they do look very alike,but unfortuanatly the mc16 engine i have been sent has only one thrust washer on bottom bigend ,so will be returning it,but i do know a guy who has some other engines,so am interested in your conversion,what did you do about speedo,and clutch cable.did your mc18 heads go onto 16 bottomend
_________________
NSR250 MC18