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

You are a damn sight closer now; good to at least be finding it out. Hmmm, I am a bit confused..... (but that is easy to do!). Is the hole in the round bore of the cylinder or below the actual bore? I am thinking it is in the round cylinder bore area.

BTW, I just checked an LA 360 block, and the 2nd timing cover hole up from the bottom on the driver's side is 2-3/4" from the pan rail at the bottom. Is this the one? That hole is threaded through the front surface of the block, and then into the lower edge of the water jacket in the front of cylinder one, and if the bolt was too long, it would punch through the lower edge of the cylinder #1 bore. That bolt should be no longer than about 1/2" longer than the thickness of the timing cover and brackets there.