Heater Hoses

SFBay‘72Duster said
So I would like to flush out my heater core and replace the hoses. I’m going through my entire cooling system.
I just want to confirm that the line to the heater core from the top of the intake manifold is the inlet, and the line from the water pump is the outlet. Thank u!

I found this for the 5.9's & 5.2's, and used it today to hook-up the Vintage Air heater valve on a resto-mod I'm doing for a buddy. I'm sure a similar search will result in a similar diagram for whatever motor your doing.

5.9 heater water flow.jpg