- Fasteners & Gaskets
- Gaskets
- Cylinder Head Gaskets
- Cometic Big Block Chevy Cylinder Head Gaskets
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. Viton-coated stainless steel outer layers create a superior seal not available with other steel or copper gaskets. MLS Gaskets reduce bore distortion, resist corrosive substances, and have excellent rebound qualities. Sold individually.
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Features
- 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)
Chevrolet 409 "W" V8
Chevrolet Big-Block Mark IV
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
Cometic Gaskets Big-Block Chevy Head Gasket 396/402/427/454/502 Mark IV & Bow Tie
What Are Cometic Big Block Chevy Cylinder Head Gaskets Common Pros and Cons?
Cometic BBC head gaskets are made from three to five layers of stainless steel, which provides excellent corrosion resistance. These gaskets also handle extreme cylinder pressures from high performance and racing engines, including those using a supercharger, turbocharger, or nitrous oxide system. Due to the high quality materials and assembly, Cometic gaskets do command a higher price. They also will not work with engines using O-rings or receiver grooves.
Which Cometic Big Block Chevy Cylinder Head Gaskets Are Best?
The best BBC MLS head gasket from Cometic depends on the application and engine needs. These include the engine type, bore size, and thickness.
How Much Do Cometic Big Block Chevy Cylinder Head Gaskets Cost?
Cometic BBC head gaskets start at just over $85 each and reach around $225 each, depending on the application.