Rocker arm wear
 

Sorry guys I'm new, I couldn't find a thread for damage from the retainers. What would cause this? It's a 1976 318 5.2 with the non adjustables. I'm pretty sure it's all stock although someones been in there.I found two head gaskets on the left bank.
https://cimg7.ibsrv.net/gimg/moparfo...932cefaed6.jpg
found two head gaskets on the left bank.

Wrong Valve retainer and Or Push Rod length ..

Thanks Cowboy! I'll look into it.