Pieces of steel in cylinder??

Thanks guys. What’s the opinion here on reusing the valve springs? The old heads won’t be reused, but I do have a pair of 340 X heads with rocker shafts/rocker arms. I have new valves and seals for them, but still have the springs and retainers from the other heads.

Also, don’t hesitate to let me know if I stray off topic here.