Ultra-Seal Intake Manifold Gaskets – 1963-1979 Pontiac 326 / 350 / 389 / 400 / 428 / 455 V8

Intake manifold gaskets for Pontiac V8 engines from 1963–1979, including 326 through 455 cubic-inch applications. Built from a durable cellulose/nitrile composite material that maintains sealing strength under heat, torque cycles, and vibration. Silicone beading surrounds all intake and water passages on both sides of each gasket to improve clamp-load and eliminate the need for additional gasket sealer. Includes a distributor gasket to complete the installation. Suitable for OE replacement as well as high-performance street builds, drag racing, and oval-track engines.