just out of curiosity is that how the heads on the 6.0 powerstroke look like?!? ive never seen a cylinder head that looks like that to be honest where the valves are flush
I’ll get flamed for this non technical explanation. Most diesel cylinder heads are this way. Valves are recessed, piston protrudes, head gasket thickness and valve recession provide piston to valve clearance, combustion chamber is in the center of the piston.
As a retired factory trained tech.... When MLS gaskets started to be the norm they trained us saying that machine shops don't have the capability to machine the heads smooth enough. Only option is to replace if damaged. In fact they did not even want us to clean the surfaces up with 3M pads as they "scratch too deep". Told to use wood or plastic scrapers only! Whatever, my training was obviously wrong and I always did proper repairs. At one point they also said that blown out plugs only could be repaired by replacing the head. That was wrong too.
