Mr. Gasket 5862 - Valve Cover Gasket Set - Ultra Seal 0 396-502 Chevrolet Big Block Mark IV/V/VI 1965-00

- Manufactured from high-density cork/rubber blend gasket material. - A black latex rubber coating is applied to the outside of gasket to help seal minor flange irregularities and eliminate the possibility of oil leakage. - Creates a positive seal by controlled swelling of the gasket material when exposed to hot engine oil. - Available in standard or extra thick to provide additional rocker arm to valve cover clearance. - For OE replacement, high performance street, drag race and oval track use. -Thickness .187"