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The Cometic MLS head gasket for Chevrolet ZL1 Mark-IV Big Block V8 (4.300" bore, nominal .027") uses multiple embossed stainless steel layers with Viton-coated outer faces for durable sealing. Its multi-layer construction rebounds under load and resists corrosion, making it suitable for aluminum-to-aluminum or aluminum-to-iron combinations. The uncoated shim layer can be varied to meet thickness needs and improve sealing distribution.
Cometic Chevrolet ZL1 Mark-IV Big Block V8 .027in MLS Cylinder Head Gasket - 4.300in Bore
