[Ratman407]

Hi guys

Still doing the swap of the G16b into my Sierra
Looking at the hoses that go back into heater core

There’s one hose that comes off the back of the block
And another one that comes off from the intake side of the motor and the same spot the bottom radiator hose is

I’m guessing the heater core is one way so which one goes to the switched line and which one goes to the double hose outlet in the fire wall ?


Sorry if that’s confusing lol it’s confusing me as well