Aerocool Dead Silence Mid Tower Case Water Cooling

[smg4life01]

So guys I own a Dead Silence case already and I've watercooled my cpu, I'm planning my next move and  that is to water cool my gpu only thing is i want to upgrade my radiator from a 30mm thick alphacool rad to a 45mm alphacool radiator, would anyone happen to know if a 45mm radiator will fit at the top of an aerocool dead silence case or would i need to put the radiator outside the case, Also on their website they only show the front of the case for the water cooling so they haven't put anything there about the top of the case for water cooling.