Mr. Gasket Ultra-Seal Head Gasket

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Overview Mr. Gasket Ultra-Seal Head Gaskets are a five layer (graphite core/perforated steel outer layers) composite construction. The graphite core has excellent thermoconductivit y (transfers heat) away from hot spots in head preventing gasket burn-out. They provide excellent stability, compressibility and high temperature endurance. A high temperature silicone coating ensures sealing of engine fluids. Compatible with cast iron or aluminum heads, they will not brinell (indent) aluminum cylinder heads. Suitable for high performance street, drag race and oval track use. Sold individually.Gasket bore 4.100 inch, Compressed thickness 0.028 inch 1957-1991 Chevrolet 283-350 Gen I Small Block - 4.100 Inch Gasket Bore - .028 Inch Compressed Thickness Features Five layer (graphite core/perforated steel outer layers) composite construction Graphite core is excellent transfering heat away from hot spots in head preventing gasket burn-out. Provides excellent stability, compressibility and high temperature endurance Coated with high temperature silicone to ensure sealing of engine fluids Will not brinell (indent) aluminum cylinder heads For high performance street, drag race and oval track use Show more