DD15 liner? Need someone to offer a good explanation!

[HotRod]

I realize now after looking at the post it turned the picture. I attached another picture the arrow indicating the up position, the red line is where the oil control ring or maybe the bottom of the piston crown sits on the liner at BDC. It is hard to get any further away due to taking the picture from the inside of the liner. I will try to get a few more better pictures tomorrow and post them as well.