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The Cometic MLS exhaust manifold gasket set for Chevrolet 348/409 W‑Series big block V8 applications features a 2.082in x 1.508in port and multi‑layer stainless construction with Viton‑coated outer layers. Built to withstand extreme cylinder pressures, it resists corrosion, maintains torque set and will not burn through or push out. No sealants are required for reliable exhaust sealing.
Cometic Chevrolet 348/409 W-Series Big Block V8 .064 AM Exhaust Manifold Gasket Set
