So I did some more investigating and I think i need to clarify something. Oil does not come out of the copper line it comes out of the fitting that goes into the block when I try to remove it from the block. Question #1: Where does the copper line come from? When I try to take it out of the bottom location I can get the fitting loose but the line does not come out. Question #2: Is it possible that the copper line passes threw the block where there is antifreeze for some cooling purpose and that is why antifreeze comes out when I loosen the fitting?

http://i543.photobucket.com/albums/gg447/Seykoras/1937%20Chevy/Fall20101937Chevy027.jpg


Thanks,
Charlie