mazdatweaker_2
+1y
Based on what your pictures show, I'd guess you're in it for a head, lifters, cam sprocket, and a cam at a minimum. I can't even see where the oil feed holes are on the journals due to aluminum shavings that have filled the grooves.
If you crank the engine you can see where the oil should come up to oil the cam.
I'd kind of like to see pictures of the other three journals if you can get them.
You can also flip the rocker assembly over and take a picture or two to maybe show some other evidence of the cam chatter that occurred during the top end being starved of oil.