i have a 64 olds super88. i have replced the original 394 motor with a 350 chevy. the problem i'm having is how to hook up the heatercore. my radiator does not have a fitting in it for a heatercore hose. the original motor had a fitting on the back of the intake for one hose and one in the waterpump for the second. the 350 only has a fitting in the front of the intake. it has serpentine system drive belt so i cannot change the waterpump for one with a fitting in it. can anyone help me?