The problem with that is you'll get cooler water for the heater and sensor from the water pump directly below the front water neck. That's why it's blocked off in a reroute, to force all water from the front to the back. Although some of us keep the water neck, it's just for the switch, so it's still "plugged".

aka, keep the heater hose in the back.

 

Edit: Ignore sorry. Realised I was tired and gave false info. Confused myself.

Dann

 

I may just leave it alone for now then. I got a new thermostat and I just need to get it back on the road it has a brand new upgraded radiator, new water pump and I am getting 2 new upgrade fans.