box intercooler?

ok last night i gutted my dash due to the fact that my heater core went out and a heater hose decided to split and spray coolant all over my fuel injectors, anyway the blower motor and all of that is gone and i had this rad idea about putting a box intercooler in there like the pro street cars do. has anyone done this on a street car? im practically drooling over this idea. itd be a watercooled intercooler and i could even have the fill neck coming out of my dash!!

Drew