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This is on 1981,when I did a lot of work with engine over a year ago,never hooked hoses back up,just set them aside,now hooking them back up,no issues with One going to intake,I guess that’s the 5/8 hose,but the one going to the water pump,it had like a metal tubing two bends in it,the nipple,then a short piece of hose maybe 2 inches long then the metal tubing from there to the hose,well,now don’t see any way to hook it up properly,I’m assuming because of the headers,not sure,but can’t I just,discard the metal tubing and get another piece of hose,and put like a pvc connector to hook the two together.
It bolts to the back of the A/C compressor and works fine with headers. Keeps the hose routing safe. I would just use it. Bolts to back of A/C compressor Keeps hoses away from hot header tubes Short run to water pump.
Suggest no PVC in auto heater hoses. If in a pinch, perhaps CPVC. Stick w/ auto heater hose or metal.
If ya place a metal ball valve in each of those 2 hoses; you can close them and isolate the heater core. And usually lower cabin temps. Reopen whenever needed.
Heater hose
