well if it is designed to fit 2 420 at the same time it should be fine then, but i asked as in the manual it didn't tell if could hold 2 420 as in other models i saw in manual itt was max 420+360 written directly so i was scared. If in any place top or front has room for 460mm then should work. Yey will buy and hope to work. Thanks, and btw, any smaller case to fit those monster radiators? there is none, right? thanks again