Can someone help me with the correct routing of these heater core hoses?
Where does the right and left hose go?
74 F250 4X4
360ci
no A/C

Thanks
Marc

 

one should go to a fitting right behind your thermostat atop the intake manifold, the other comes from the passenger side of the water pump. doesnt matter which but i always run the water pump to the outer most i/o on the core and the innermost to the intake, they look best so they dont cross each other.
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here is a pic of mine you can see them

 

also... i dont if you just put in a new one? if not backflush it with your garden hose both directions first while your here!

 

So it doesn't matter which side of the heater core?
The coolant can flow either way in the heater core?

Sorry for the dumb newbie questions.

Thanks
Marc

 

On a Bump but you get the idea. The printing on the heater hose should be readable, versus upside down, when standing next to the right front fender.



Go here for the PN for a 90° intake manifold fitting: https://www.ford-trucks.com/forums/1...l#post13559606

 

No it doesn't matter. There isn't an in/out on the heater core.