14-06-16, 07:00 PM
is it 100% a hole i.e. can you poke something into it, even a little way, i will go get some pics of the cylinder head i have in the garage on the desk, from what i see, its going to be exposing potentially the path a valve stem travels or maybe the springs/buckets, if it have breached the integrity of the top of the head, i would expect you would have oil every where....