Coolant bypass valve questions

[thorney_5]

In preparing for my future v8 swap I have been looking at sisters 2000 5.0 to learn the differences and gather a parts 'shopping list'. I noticed that the heater hoses are routed differently and it has a coolant by pass valve. My current SOHC lacks this valve. Why is that? It is also present on my 2010 v6 ranger. This entire HAVC/vacuum system has always confused me so if someone could give me an explanation it would be much appreciated. I'm also missing that round vacuum "ball", yet my vehicle is 4 wheel drive-- I've read these 2 things are related? Would I need to add these things when swapping in my 5.0? This seems to be a very overlooked or not-often-talked-about topic which is why I raise these questions.

Thanks in advance.

 

[thorney_5]

Check that.... Coolant bypass valve is buried just below and behind the belt tensioner and vacuum canister is under the air box.... Forgive my ignorance lads.