First of all are there any freeze plugs on the 96 Tracker 1.6---16v---4x4???

Second----On the drivers side of the engine, just below the 3rd plug, just below valve cover gasket and just behind the brace that holds up the air snorkel-----There is a circle with a cross that is sort of stamped into the top of the head about the size of a quarter-----Is that anything or is it just a stamp in the aluminum----Thanks

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