Mr Gasket 5871 Ultra Seal Valve Cover Gasket Set

Ultra-Seal is Mr. Gasket's premium valve cover gasket material. it's manufactured from a high density cork and rubber blend with a black latex coat applied to the outside to help seal minor flange irregularit's and eliminate oil leakage. It creates a positive seal by controlled swelling of the gasket material when exposed to hot oil. For OE replacement, high performance street, drag race and oval track use. Sold as a pair, these gaskets are .187" thick.