Bitter taste of defeat! So much coolant in the oil pan.

67Dart273:
I feel like I should have ruled out the timing cover in my previous test, where I had the timing cover off entirely, and did what you suggested: water holes in block plugged, pipe-dope coated bolts in the timing cover bolt holes, etc. When I poured water into the thermostat hole on the intake and saw the stream coming out through the oil pan (still), that's when I decided to pull the intake manifold and replace the gaskets. :banghead:

I wonder if it is time to pull the engine out of the car... don't know if I can stomach doing all this all over again in the driveway! Pulling the oil pan with the engine in was a bear.