Re: Newbe 65 GMC
I'm not sure but I think the heater hose need to be connected between the inlet to the outlet, even though it just circulating the coolant. I believed that extra flow will allow enough heated coolant from both heads to pass by the thermostat and allow it to open. Without it its possible for the engine to overheat without any indication on the dash. I don't know if the bypass hose to the pump is sufficient to prevent overheating. Like I said I am not sure what will happen. Just my thoughts.
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