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The Cometic fiber valve cover gasket set for Pontiac 350/400/428/455 V8s (.188 in) uses race‑inspired materials to exceed OE standards, resisting blowout, over‑tightening and high vacuum. The design improves sealability across varied flange conditions with a fully cured nitrile butadiene rubber binder for fluid resistance and incorporates a steel torque‑limiting frame to reduce cover distortion and aid repeatable installation.
Cometic Pontiac 350/400/428/455 V8 .188in Fiber Valve Cover Gasket Set
