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The Cometic CFM-20 intake manifold gasket set for Chevrolet Gen IV big block V8s is .059" thick with 2.500" x 1.775" ports and includes provisions for AFR applications. Cometic supports product validation through in-house dynamometer and engine assembly testing; the gaskets are asbestos-free and have been used in both street and track settings, reflecting attention to durability and fluid resistance in demanding installations.
Cometic Chevy Gen IV Big Block V8 .059in CFM-20 Intake Mani Gasket Set-2.500in x 1.775in Ports
