that math aint right...ooops, it was a typo, 360 times 120 times 77 is 3326400 cubic cm, that equates to 1309606.299 cubic inches, which equates to 5669.29134 gallons
3326400 cubic cm is 1309606.299 INCH and not cubic inch.
3326400 cubic cm is 202989.4 cubic inch which is 878.74 gallon...