Bent up stuff

Here is #1 exhaust and intake valve patterns. I pulled the rockers off to check things out.

View attachment 1714953601
Those locks don't look right, like 3/8 locks on a 5/16 stem, they don't look like the diameter matches the stem. What's that shiny down in between the valves springs? Rubbed casting or aluminum bits from the rocker? Need to poke your finger down in there.