Should I be Concerned?

I'll just pull it out myself. Much easier and faster than loading the assembled short block in the truck, taking it to them and have them do it. It doesn't look like a new one. Before I took the block to them I knocked out all the plugs and the block was packed with hard sludge. I didn't hear it until I took the air hose to the inside the block cleaning everything out real well. The rest of the machine works is really nice. I will mention it to them when I pick up the heads today.