Thread: Heater Help
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Old 12-03-2014, 08:25 PM   #9
donut
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Re: Heater Help

I believe the supply is off the manifold with the return to the radiator or water pump.
I may be wrong or the LS engines may be different.

I think your supply would be from below the thermostat (intake manifold on the old style engines) and return after it.
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