What is the main advantage of using a Multi-Layer Steel (MLS) gasket?

MLS gaskets are built with multiple layers of stainless steel, which provides increased strength and better resistance to corrosion compared to traditional materials. They also offer improved rebound characteristics for a more reliable seal.

What does the Viton coating on the gasket do?

The Viton rubber coating on the outer layers helps create a robust seal in demanding environments. It's heat resistant up to 482°F (250°C) and can handle various load conditions and surface finishes on the engine block and cylinder head.

Why are the water ports undersized on this gasket?

The undersized water ports are designed to accommodate aftermarket cylinder heads. This feature allows for precise port matching during installation, ensuring optimal coolant flow and sealing specific to your engine build.

Specifications

Brand: Cometic Gasket
Part #: C5402-066
UPC: 191070125868

Cometic Chevrolet Gen-1 Small Block V8 .066in MLS Cylinder Head Gasket - 4.160in Bore

Name: Cometic Chevrolet Gen-1 Small Block V8 .066in MLS Cylinder Head Gasket - 4.160in Bore
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-chevrolet-gen-1-small-block-v8-066in-mls-cylinder-head-ga-t14-805599
Price: 131.62 USD
Availability: BackOrder

$131.62

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Cometic Chevrolet Gen-1 Small Block V8 .066in MLS Cylinder Head Gasket - 4.160in Bore. Fits a wide range of GM vehicles.

Key Features

Fits Chevrolet Gen-1 Small Block V8 engines.
Multi-Layer Steel (MLS) construction for strength and durability.
Features a .066 inch thickness and a 4.160 inch bore size.
Outer layers are coated with heat-resistant Viton rubber.
Viton coating is effective up to 482°F (250°C).
Undersized water ports allow for customization with aftermarket heads.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

This is a Cometic Multi-Layer Steel (MLS) cylinder head gasket designed for Chevrolet Gen-1 Small Block V8 engines. It features a thickness of .066 inches and a bore size of 4.160 inches, making it suitable for a variety of GM vehicles from the early 1980s, including models like the Chevrolet C10, Camaro, and Buick Regal.

Cometic builds these gaskets using three to five layers of stainless steel. This material choice offers increased strength, better rebound characteristics, and resistance to corrosion. The outer layers are embossed and coated with Viton rubber on both sides. Viton is known for its heat resistance up to 482°F (250°C) and its ability to handle tough sealing environments and varying surface finishes, which is crucial for maintaining a good seal under different load conditions. The water ports on this particular gasket are undersized, which is a common feature when using aftermarket heads, allowing for custom port matching during installation.