Mr Gasket - 7409G - Fits 1965-1990 Chevrolet 396-454 Big Block with Round Ports, 2.15 Inch

Upgrade to Mr. Gasket Aluminum Layered Header Gaskets and eliminate blown exhaust gaskets forever. They conform to warped and damaged surfaces to create an airtight, leak-proof seal and will not shrink or deteriorate EVER.