combustion chamber volume

looking for the combustion chamber volume ( c.c.'s ) for
1973-76 Z1
1977-78 KZ1000
1979-80 KZ1000
1981-82 J
1983-84 GPZ1100
had them but misplaced them

thanks
don

36cc for all the 900/1015 kickstart equipped motors ( 66cm hemisphere heads) Z1, Z900,Z1000, Z1r, MK2, ST.
40cc for all 998 and 1089 non kickstart motors ( 70mm hemisphere heads) 1000 J, GPZ1100 ETC.
Also 40cc for the 83 unitrack /1100 spectre twinswirl (bathtub) head .

thanks, it's what I needed

don