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Growl....... The problem is not the heads, not head gaskets, but the sealing method!!!!!! The instructions are completely wrong in this and is why the gaskets fail. Let me put it to you this way: You're putting a piece of carbon fiber between 2 metal pieces with no sealant internally and expecting that to keep back over 200 degree coolant alone. No matter how tightly those 2 metal pieces are together. there is absolutely no way that a piece carbon fiber alone is going to keep from leaking. My advice: put a thin bead of sealant not only along the outside edge as the instructions say, but also around each and every coolant port and cylinder on both sides of the gasket.

Thank you.
 
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