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Just one slight correction to the previous post. It was Victor themselves who originally introduced the steel reinforced graphite gasket in common use today and it was definitely not their intent to eliminate the long standing Universal recommendation of using two head gaskets. In fact, Victor included a small note recommending two gaskets in their standard Victor packaging for many years. I had the opportunity to collaborate with Victor on the design of the gasket and to do the original testing. The reason for the two gaskets is to approximate the thickness of the old copper clad asbestos gaskets and thereby retain the original compression ratio.
Don
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