Remove and Inspect Cylinder Head

What happens here

After removing the rocker arms and bolts, the presenter lifts the cylinder head from the engine block. Upon inspection, he quickly identifies a clear problem: one of the cylinders on the cylinder head is not black with carbon like the others, and there's a visible 'torched' area on the head gasket surface between the cylinders and the coolant passages. This indicates a severe head gasket failure. He reflects on his surprise and need to understand the cause of the failure, speculating about a lean condition or overheating. He offers the damaged head gasket as a giveaway item to viewers.

Goal: Identify the cause of engine failure (blown head gasket).