Cab, your correct we couldn't seal the oil galleys, bearings, tappets, etc. But with a steady flow from the air compressor it simulated the volume through the system.Got the motor out this afternoon. Removed the valley plate. Rigged up a fitting to the coolant system from an air compressor. No head gasket leaks into the valley. Air was coming from the oil filter mounting pad, obviously a problem. The only thing I could think of was the priority oil galley or the head feed galleys were connected to the water jacket. The block has a fair amount of core shift. The right side valley was clearanced for the push rods. The right head was removed. This time we aired up the right head feed galley . It bubbled what coolant was left in the block out of the adjacent coolant passage in the deck. Apparently there was enough core shift to expose the right head feed galley to the coolant passage just below the bottom of the internal deck casting. So now the engine will be disassembled, cleaned, and those passages filled with JB Weld. I'm going to remove the #4 cam bearing and rotate it to block those passageways as well. Additionally the priority galley will get plugged off and pressure tested as well, just in case.
Doug