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 in-cabin-monitors 4 V8 1963 - 1969

4 V8 1963 - 1969 Chevrolet Bel Air 427/7 V8 1968 - 1969 Chevrolet Bel Air 396/6

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 4481274

4 V8 1975 GMC C25 Suburban 350/5

7 V8 1996 - 1998 Chevrolet C1500 305/5 V8 1999 Chevrolet C1500 / 1996 - 1999 Chevrolet C1500 Suburban 350/5

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 in-cabin-monitors 4 V8 1963 - 1969Overview: 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,