The motor I pulled from a 79 chevy had one hose going to the radiator, and the other to the manifold.
Now that the motor is in my 66, there is no place on the 66's radiator for a heater hose.
There is a plugged hole in the top of the water pump that I'm guessing i will need to use, by the looks of these pics:
This one here is markeb01's:
