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vilanar · 11-19-2019, 02:33 AM

Maybe it's already covered here but , hot water should go to the lower port of heater core and return hose to upper port . That way heater is always full of coolant and it will blow hot even when engine is at idle. If coolant is circulating .....

11-19-2019, 02:33 AM	#29
vilanar Senior Member Join Date: Jan 2011 Posts: 162	Re: 52 v8 flathead heater Maybe it's already covered here but , hot water should go to the lower port of heater core and return hose to upper port . That way heater is always full of coolant and it will blow hot even when engine is at idle. If coolant is circulating .....