Replacement heater shut-off valve

[Merle Coggins]

I've always used the bottom to top flow of heater cores. It helps purge any air from the core and ensures the core is full of coolant for heat dissipation.

[46Ply]

My reason for asking was because my inlet and outlet are almost directly horizontally across from one another.  And the inlet now is the one on the right closest to the back of the head.  The one on the left goes back to the water pump.

 

Edited November 9, 2015 by 46Ply

[Dajudge]

Thanks, got the heater in today but forgot the hose at home.  I will put the hoses on tomorrow.  My switch works and my fan come on so that is good.  Now to find front wheel cylinder kits somewhere local so I can get her brakes to stop leaking.

[meadowbrook]

Is that valve necessary? I installed a 1/4 turn ball valve from Home Depot in my Dodge but I never shut it off, I have never noticed any heat from the heater vents if the temperature slider is on the cold setting. I have the 300 model heater.