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Cometic Gaskets C5811-030

Cylinder Head Gasket Oldsmobile 330/350/400/403/455

Cometic Gaskets C5811-030


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Estimated ship date 03/28/18 if Ordered Today
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Cometic Gaskets C5811-030 Cylinder Head Gasket Oldsmobile 330/350/400/403/455 $87.97
Cylinder Head Gasket
  • Oldsmobile 330/350/400/403/455
  • Bore: 4.270"
  • Compressed Thickness: .030"

  • Cometic Multilayer Steel (MLS) Gaskets are designed to provide the best possible seal for naturally-aspirated, boosted, or nitrous-fed engines. The head gaskets are made from 3-5 layers of spring stainless steel, offering a stronger base material than standard cylinder head gaskets. The outer layers are Viton-coated stainless steel to create a superior seal not available with other steel or copper gaskets. The gaskets have excellent rebound characteristics and are made to resist corrosive substances. MLS head gaskets reduce bore distortion but can still endure extreme cylinder pressures. Sold individually.

  • Made from stainless spring steel for exceptional corrosion resistance
  • Designed to withstand serious cylinder pressures without machining for installation of locking wire
  • MLS Cylinder Head Gaskets are coated with .001" thick Viton rubber that's bonded to the outer stainless steel layers

    Installation Notes
  • Not designed for use on engines with O-rings or receiver grooves
  • Always refer to the fastener manufacturer to determine accurate torque values
  • A surface finish of 50 RA (roughness average) or finer is recommended for proper gasket seal
  • Cometic Cylinder Head Gaskets go on dry because they're coated with a sealant (adding another sealer can hinder gasket performance)