What is the compressed thickness of this head gasket?

When properly installed and compressed, this Cometic head gasket has an operating thickness of 0.036 inches. This is a critical measurement for achieving the correct compression ratio in your engine.

Do I need to use any sealant with this gasket?

No, Cometic Multi-Layer Steel (MLS) head gaskets are designed to provide maximum sealing performance on their own and do not require any additional sealants. The Viton coating on the outer layers ensures a reliable seal.

What is Viton and why is it used on this gasket?

Viton is a high-performance, heat-resistant rubber material. It's used to coat the outer layers of this gasket because it can withstand demanding sealing environments and high temperatures, ensuring a durable and reliable seal.

Specifications

Brand: Cometic Gasket
Part #: C5246-140
UPC: 191070366339

Cometic Chevy Gen-1 Small Block V8 .140in MLS Cylinder Head Gasket - 4.100in Bore - Round Bore

Name: Cometic Chevy Gen-1 Small Block V8 .140in MLS Cylinder Head Gasket - 4.100in Bore - Round Bore
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-chevy-gen-1-small-block-v8-140in-mls-cylinder-head-gasket-t14-804578
Price: 249.06 USD
Availability: BackOrder

$249.06

On Backorder

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Cometic Chevy Gen-1 Small Block V8 .140in MLS Cylinder Head Gasket - 4.100in Bore - Round Bore. Built with multiple stainless steel layers and Viton coating for a strong seal.

Key Features

Fits a wide range of Chevrolet Gen-1 Small Block V8 vehicles from 1980-1996, including models like the Chevrolet C10, Camaro, and Corvette.
Multi-Layer Steel (MLS) construction offers increased strength and resistance to corrosion.
Outer layers are coated with Viton, a heat-resistant elastomer capable of withstanding high temperatures up to 482°F (250°C).
Compressed operating thickness is 0.036 inches, with a bore size of 4.100 inches.
Designed for high-output engines and requires no additional sealants for installation.
Suitable for sealing between aluminum heads and aluminum or cast iron blocks.

⚠️ 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

Starting with a .140 inch compressed thickness and a 4.100 inch bore, this Cometic Multi-Layer Steel (MLS) head gasket is built for serious performance on a wide range of Chevrolet Gen-1 Small Block V8 engines. It’s designed to handle the demands of high-output builds, offering a robust seal without the need for additional sealants. This makes it a solid choice for everything from a street-driven classic like a 1980s Chevrolet C10 to a performance-oriented Camaro or Corvette.

The construction here is key to its reliability. It uses multiple layers of stainless steel, which not only adds strength but also allows the gasket to rebound and resist corrosion. The outer layers are coated on both sides with Viton, a heat-resistant rubber material that can handle tough sealing environments and varying surface finishes. This combination ensures a dependable seal between aluminum heads and either aluminum or cast iron blocks, effectively managing the shearing forces that can occur between different metals.

This gasket is a well-built component for rebuilding or upgrading your Gen-1 Small Block V8. It’s designed to fit right and perform reliably in demanding applications, making it a popular choice for engine builders looking for a dependable seal.