Before you pull things apart, try blue-devil head gasket sealer. About $30 a bottle. It becomes solid only after meeting air.
Let the blue-devil to circulate the engine for good few minutes and shut the engine off (floow the directions printed on the bottle). Let it sit for few days to form the solid material in the cracks in the HG.
https://www.youtube.com/watch?v=XpXPOWMJ4lY
Thanks for the tip man. Do you or anyone on the forum has any first hand reviews on this?