Curious on the best way to route heater hoses.
I'm doing a 6.2 conversion into a Toyota Land Cruiser.
I didn't pay attention to the heater hose routing on my 82 GMC donor truck before I pulled the engine.
I'm thinking of putting a 5/8 hose barb at the back of the head for the outlet and putting a 5/8 bung near the top of the radiator for the return.
Would this be an acceptable method?
Or would the outlet need to be at the water pump?

Thanks !

the feed to your heater core should come off of the water crossover pre-thermostat so that the hottest coolant that is waiting for the tstat to open up can travel through your core and dump back into the radiator as you already planned.

Actually I'm trying to get the least hot water coming out because I'm plumbing it to a heat exchanger/oil cooler to cool my motor oil.

I see a pipe fitting on the water pump.
Would that be a good place to put a return line?
It would save me a trip to the radiator shop to get a nipple installed on it for a return.

The water pump has two inlet fittings, one for the hose from the cross over pipe to the water pump and then another one that is unused. You could use the last one for your return.

There is not an outlet on the water pump to supply non-heated water for an intercooler. You will not be cooling your oil if you run it thru an intercooler that is supplied by hot water (from the heads). The standard oil cooler is located on the cool outlet side of the radiator. Some people use a large air cooled oil cooler in front of the radiator. I used that method when I put a 6.2L engine in my 1970 Chev. C20. I have wondered if my air cooler didn't do a better job of cooling my oil instead of the standard radiator version. Remember the radiator version runs the oil lines behind the hot radiator (and that air is very hot).