the theory behind a copper head gasket is that when your head is bolted on the copper has more sealing capability than a stock gasket . thus helping compression however in motors that produce high heat the copper tends to get a little soft that causes problems
if you want to put one on your car go to the maufacturer MR. GASKETT is one of them dont make a decision based upon someone on a forum that isnt trained to tell you the info ... happy motoring
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