"Thanks guy's for all the helpfull info, before I show some more pictures I wondering how did they fill up that oil filter after replacing the filter element?"
If you are speaking of the horizontally mounted oil filter the simple answer they didn't. The vertically mounted filter of course you pour in 1-2 quarts slowly after you put in the filter then put the top on.
It really is not much of a problem with the Chevy splash/spray lubrication system as there are nearly two quarts of oil trapped in the troughs, which any of us who have flipped over a 216 Chev without first removing the oil pan discovered as the oil ran out onto the floor. This oil trapped in the troughs will lubricate the lower end of the engine until the oil pressure comes up and the spray jets take over. I’ve done some test and the Chevy oil system though low pressure moves a lot of oil. See
http://www.canadianmilitarypattern.c...Page%20Two.htm for some pictures
But you raise a very important point do not just dump in 6 quarts of oil in a freshly assembled engine and try to start it. You really need to prime the oil system, use a electric drill down through the mounting for the distributor. Dumping in the oil does not insure that the troughs are filled.
Cheers Phil