Part Identification

[AJ2393]

I'm redoing my valve cover and found this "shim" floating around my valve train. Not sure where it came from. I did have to replace the threaded rocker bridges in two places to non threaded ones, but I'm pretty sure it didnt come from that. Any ideas? Want to make sure I'm not overlooking something.

 

[mysunnshine]

That is a rocker arm pedestal shim.

 

[AJ2393]

Thanks. I guess now I have to figure out which valve it came off.