302 Heater Hose Diagram (Posting by request)

[Oakland Bronco]

Posting this for 68Olblue

 

[Skiddy]

am i blind i don't see the heater control valve

 

[Oakland Bronco]

I don't see the heater control valve either. Looking at the diagram, on my rig, the heater control valve is connected to the shorter hose. Diagram came from Ford.

 

[red hot71]

Is there any reason,if your manifold is so equipt,that you can't pull your heater core water off the back of the manifold? My manifold is aftermarket and has the crossover. And yes I will install a control valve.

 

[Oakland Bronco]

redhot71's question has gone unanswered, so bumping it back to the top before the thread disappears

 

[Broncobowsher]

Is there any reason,if your manifold is so equipt,that you can't pull your heater core water off the back of the manifold? My manifold is aftermarket and has the crossover. And yes I will install a control valve.

You can pull warm water from the back of the intake. But it won't be as hot as water from the front.

If you look at the cooling water path through the engine it is easy to understand.
Cold water from the radiator goes through the water pump and into each side of the block. At this point it is like a pair of 4-cylinder engines.
The water flows through the block, around the cylinder bores to the rear.
At the rear of the block there are large coolant passages up into the head. There are a few minor ones along the length of the deck but those are low flow speciality cooling holes.
The heads are where most of the heat is generated at. The water flows from the back of the heads toward the front.
Pulling water from the back of the intake will only get the heat of the block, not the heat of the heads.
At the front of the engine the water passages merge in the intake manifold and are fed to the thermostat, then back into the radiator to be cooled and start again.

So yes it will work, but not to the full potential of the heating system.

 

[red hot71]

Thank-you for the info. MIKE