Trularin-
1. These are mechanical flat tappet lifters. If there are any other parts, they will be in the pan
2. When I ordered my lifters from Comp Cams, they said they were having manufacturing problems at the supplier. I may have received some bad parts.
3. The guides are fine. I checked.
4. The assembly lube was about 2 months old.
5. It's a 460 punched to 503
6. Don't know yet. I have to remove the heads and disassemble the lower end.
One more point - several of the lifters have holes in them on the bottom from excessive wear, as if there was no
oil getting to the lobes, or that the material was not hardened properly.
Venom_S