Blown head gasket, likely cause????

You know your shizz Moper. I've been ghosting here long enough to know that.
This engine is running some fangled rings. I think they're total seal, with some powder on the bores. tungsten something or other, or some such.
it wasn't seen to be smokey when last run. If it uses oil, or blows by after the heads go back on it will have to come out again.