Yep , stud pattern's different and even if you did fit one the capacity would only be 131.86 cc and the piston would be down in the bore at the top of the stroke giving lousy compression ...
wtf? its the same answer, i just didnt go into detail
ok, i could say the bottom of the cylinder would require either turning down to 56mm, or cases machining out to whatever the 140 has.... then wrist pin would catch you out.... blah blah blah blah!