Like the title says, it regards the lower radiator hose temperature.
I did a B18A1 swap in my ED Civic Si. I used the stock radiator, and changed the rear water neck (yes, it fit perfectly).
The water temp on the upper radiator hose gets nice and hot like it should, but the lower hose stays cool to the touch.
I am concerned, but should I be? I found a topic that said that they tried the thermostat. Has anyone else had this problem? I need someone else's second opinion here guys.
Thanks for any help.

IT