Overheating? bought the car with water pump bad the bearing were shot and pulley was very wobbly. replaced water pump fill with cooland and after 2-3mins radiator will have steam coming out with the top hose hot and thermostat housing/water pump housing in back of motor hot. bottom radiator hose and heater hoses are cold replaced thermostat, flushed out radiator with a water hose. jack front of car up waited to see if there was maybe a are pocket shut off let it cool down 4-5times to refill still nothing and temp gauge only went to half way running for 10 mins . no signs of water mixing with oil or out the exhaust and overflow dont bubble.

SOURCE: '97 subaru overheating

head gasket most likely.

SOURCE: engine overheating-----1994 Olds Cutlass Supreme 3.4 liter v/6

There seems to be an air pocket or no antifreeze in engine block. Try this method disconnect upper radiator hose and pour water directly into hose down into engine block until it full. when its filled reconnect hose and fill up radiator. as the vehicle warms up open bleeder valve on the thermostat housing and release air from system. open slowly and BE VERY CAREFUL WATER WILL BE HOT, bleed until you get a steady stream opening and cosing valve. However if all of this don't work. You may have a bad pump. Good Luck

SOURCE: 1990 toyota corolla wagon 1.6 liter 5 spd. overheating

you've got a possible blockage in the head or block.

SOURCE: 03 Buick Rendezvous Overheating

If the top hose is hot and the bottom is cold, your definitely not getting circulation. You,ve already done alot of work to this vehicle so you have pretty much answered your own question. About the only thing left is the heater core. Of course, I dont want to be the one to tell you it is definitely the heater core because obviously I am not looking at the vehicle. But If i was a betting man, thats where my money would be.

SOURCE: BOTTOM RAD HOSE COLD TOP HOT. ENGINE TEMP ABOUT

Did you burp the air out of the system after changing those parts? It sounds like the thermostat isn't opening which is why the lower hose is still cold. Click my screenname, go to my tips and tricks, and choose the one about burping the cooling system - it may help you out.