Can anyone give me a part number or link to a hose that will loop from the inlet of the heater core (head) to the the outlet (thermostat housing).

I removed my heater core and just want to loop da ****.

...or should I just plug them up (is it beneficial to let it circulate?)

sohc zc (d16a6)

 

http://autozone.com/R,APP91127...l.htm

 

loop it thats what i did in my crx when i removed all the unessacary stuff behind the dash

 

just get some 5/8 heater hose, a couple feet (3-4)should be fine.