Well the priming tool finally arrived the other day, picked up some Valvoline VR-1 10W-30 oil and some Lucas break-in zink additive oil as well. Filled the engine and started to try to prime the oil pump. It took forever it seemed just to get it to build oil pressure. After many attempts it finally built oil pressure, roughly 48~50psi. I'm not sure what it should be, does this pressure sound about right for a 1968 440?
So I figured I was home free, kept trying to build the pressure so that oil would come out by the rocker arms. Nothing would come out, so I rotate the crank about 30 degrees, then nothing. I kept doing this song and dance forever. Then I'm looking at the left side rocker arms I'm seeing nothing, but I then looked at the right side rocker arms and holy crap oil was coming out of them like hell wouldn't have it. The picture shows the mess I made on the floor.
After I cleaned up that mess, I kept trying to get the other side to fully prime. It took about another 5 minutes of rotating the crank shaft to find the right location. But when I did, that engine oil was coming out fast. Glad I took my time and kept an eye on the other side so I didn't do the same thing.
At least everything worked. The engine and transmission are now ready to install into the car, can't wait to get that done, it will be a big step in the 4 years process of getting this thing back on the road!