ELECTRIC RADIATOR

ok so heres my problem...
i bought a 4 row radiator and now my fan hits my radiator! so i only have a "LITTLE!" more than 3 inches between the radiator and my water pump pulley. i was wondering if i can fit a fan in between that little gap. the fan must be no thicker than 3 inches and i can fit a 14inch fan just to let you guys know. if not im gonna have to return the 4 row and get 3 3 row which i dont want to do! if this is possible what do i need to by to complete my fan project?
p.s. i have a 1965 mustang 289.<--- if that helps!
PLEASE HELP!.....