i was lookin in the haynes manual and i have come to the conclusion all the crossflows run the same bores and piston its just the crank stroke that make a bigger cubustion chamber AM I RIGHT ???

IF SO
i wanted to fit twin 40s but have notice when doin my tappets the inlet and exhasut valves are in a different order on the 1300 and 1600 to the 950 and 1100

basically i am thinking of fitting a 1300 or 1600 head with twin 40s
is this possible ???
can i fit a 1600 crank pistons and conrods to the 1100 block
basically will all 1600 parts bolt in and run on the 1100 crank case
cheers lads pics soon DAVE