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

MLS head gaskets, like this one, are made of multiple stainless steel layers. This construction provides increased strength, better rebound, and resistance to corrosion compared to older gasket types.

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

Viton is a heat-resistant rubber material that can withstand high temperatures and harsh sealing environments. Coating the outer layers with Viton helps ensure a reliable seal against the cylinder head and block surfaces.

Does this gasket require any special installation procedures or sealants?

No, this Cometic MLS head gasket is designed to provide maximum sealing performance without the need for additional sealants. Always refer to the manufacturer's installation instructions for specific torque sequences and procedures.

Specifications

Brand: Cometic Gasket
Part #: C5762-066
UPC: 191070076900

Cometic GM / Mercury 8.1L 496ci 4.350in Bore .066in MLS-5 RH Head Gasket

Name: Cometic GM / Mercury 8.1L 496ci 4.350in Bore .066in MLS-5 RH Head Gasket
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-gm-mercury-8-1l-496ci-4-350in-bore-066in-mls-5-rh-head-ga-t14-193098
Price: 141.28 USD
Availability: InStock

$141.28

Only 1 left in stock

Cometic GM/Mercury 8.1L 496ci MLS-5 RH head gasket. Features Viton coating and stainless steel layers for reliable sealing.

Key Features

Fits a range of GM and Mercury 8.1L 496ci engines.
Multi-Layer Steel (MLS) construction offers increased strength and corrosion resistance.
Outer layers are coated with heat-resistant Viton for reliable sealing.
Designed for use with aluminum heads to aluminum blocks or cast iron blocks.
Compressed operating thickness is 0.098 inches.
Features a 4.350 inch bore size.

⚠️ 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

When you're rebuilding the top end of your GM or Mercury 8.1L 496ci engine, getting the head gasket right is crucial for a solid seal. This Multi-Layer Steel (MLS) gasket from Cometic is built to handle the demands of high-output engines, ensuring your combustion chambers stay sealed tight.

This gasket uses multiple layers of stainless steel for increased strength and resistance to corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle tough sealing environments and different surface finishes, making it suitable for both aluminum-to-aluminum and aluminum-to-cast iron block setups. With a compressed thickness of 0.098 inches and a 4.350-inch bore, it's designed to fit right and perform reliably without needing any extra sealants.

This gasket is a popular choice for a range of GM and Mercury trucks and SUVs, including models like the Chevrolet Silverado 2500 HD and GMC Sierra 3500. It's a well-built component that helps ensure your engine runs smoothly and efficiently after a rebuild.