650 Cm3 on Right Side of Engine?

[Waddell5]

On my father's (soon to be mine) '05 TRX450R, right next to the crankcase cover on the right side, printed on the engine it says "650 Cm3" (centimeters cubed, I don't know how to do the small 3). I was wondering what this means. Does it mean that it has a 650cc engine? I don't know of one. On the other side though it says "450 Cm3". It runs like a 450, too. Anyone?

[eastside 400]

thats the oil capacity for the clutch side of the engine. 650 mL

[desratt]

yes a cubic centimeter is exactly the same as a mililiter.

[Waddell5]

Thanks guys!