Mr. Gasket 5877 - Ultra-Seal Valve Cover Gaskets - Fits 59-80 Chrysler 361,383,400,413,426,440 B/RB Big Block except 426 Hemi New Items 13/8 V 1970 - 1972

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Mr. Gasket 5877 - Ultra-Seal Valve Cover Gaskets - Fits 59-80 Chrysler 361,383,400,413,426,440 B/RB Big Block except 426 Hemi New Items 13/8 V 1970 - 1972Overview: Ultra Seal is Mr. Gasket 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 irregularites and eliminate oil leakage. It creates a positive seal by controlled swelling of the gasket material when exposed to hot oil. For original equipment replacement, high performance street, drag race and oval track use. Sold as a pair,