Boy what a dumb question.... Which hose goes were. The one on the top or out of the water thermostat goes to the top one out of the heater core. The bottom one just above the water pump comes from the bottom of the heater core.( IS THIS RIGHT ).. I have a 250 six with deluxe heater core the heater core outlets are vertical out of the heater core. The top out of the heater core is 5/8 the bottom is 3/4. Just had a brain fart, just checking with you guys... THANKS..