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Mr. Gasket Ultra Seal Intake Manifold Gaskets

Mr. Gasket 5818 Ultra Seal Chevrolet big block intake manifold gaskets for ported rectangular port cylinder heads. Port dimensions are 1.75" wide by 2.50" high. Extra thick gasket, measures 1.8" thick. Fits 1965-1990 396 ci and larger Gen4 engines.

Manufactured from cellulose/nitrile composition gasket material. Provides excellent sealing and durability. Silicone beading applied around each port to create a tight leak-proof seal. Can be trimmed if necessary for modified ports. Complete with manifold end rail seals and distributor gasket.

Mr. Gasket 5818 Ultra Seal Chevrolet big block rectangular port intake manifold gaskets extra thick 5818$28.95
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