hey guys well i bought a 5k head tonight, I'm fairly new to cars so i don't know everything, and i saw something i havent seen before and I'm not sure if it is repairable.
below is a picture of the head i bought and one of, one cylinder in particular which is the one in question,
as said above i want to know what happened to it, how its caused and if its repairable.
cheers for any help guys.
thanks tom :D