What is the compressed thickness of this head gasket?

The compressed operating thickness of this Cometic head gasket is .060 inch. This measurement is crucial for ensuring proper cylinder head sealing and engine compression.

Does this gasket require any sealant?

No, Cometic 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 tight seal.

What does 'LH' mean for this head gasket?

LH stands for Left Hand side. This gasket is specifically designed for the driver's side of the engine, and you will need a separate gasket for the Right Hand (RH) side.

Specifications

Brand: Cometic Gasket
Part #: C5764-060
UPC: 191070139605

Cometic GM/Mercury 8.1L 496ci 4.280in .060 inch MLS Head Gasket - LH

Name: Cometic GM/Mercury 8.1L 496ci 4.280in .060 inch MLS Head Gasket - LH
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-gm-mercury-8-1l-496ci-4-280in-060-inch-mls-head-gasket-lh-t14-4381908
Price: 152.35 USD
Availability: BackOrder

$152.35

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Cometic GM/Mercury 8.1L 496ci .060" MLS head gasket, LH side. Built with multiple stainless steel layers and Viton coating for a strong seal.

Key Features

Fits 2001-2007 Chevrolet and GMC 8.1L 496ci engines.
Multi-Layer Steel (MLS) construction offers increased strength and corrosion resistance.
Outer layers are coated with heat-resistant Viton rubber for a robust seal.
Compressed operating thickness is .060 inch.
Designed for the Left Hand (LH) side of the engine.
Suitable for aluminum heads to aluminum blocks and aluminum heads to 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

No-fit, no charge. Wrong part? Send it back, free return label.

Secure CheckoutFast Shipping631-982-0042

Will it fit your car?

About this part

Product Details

This Cometic Multi-Layer Steel (MLS) head gasket is built with multiple embossed layers of stainless steel, featuring an outer coating of Viton rubber. The compressed operating thickness is .060 inch, and this particular gasket is for the Left Hand (LH) side of the engine. It's designed for GM and Mercury 8.1L 496ci engines, commonly found in heavy-duty trucks and SUVs like the Chevrolet Silverado 2500 HD and GMC Sierra 3500.

MLS gaskets are a solid choice for high-output engines because they offer maximum sealing performance without needing additional sealants. They work well with both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks, handling the shearing forces that can occur between different metals. The multiple stainless steel layers provide increased strength and the ability to rebound, while also resisting corrosion. The Viton coating on the outer layers is a heat-resistant material, rated up to 482°F (250°C), making it suitable for demanding sealing environments and various surface finishes. The center layer is uncoated stainless steel, allowing for adjustments to meet different thickness requirements.

This gasket is specifically for the LH side of the engine. If you're rebuilding the top end of your GM 8.1L engine, this well-built gasket is designed to provide a reliable seal for a range of Chevrolet and GMC vehicles from the early 2000s through 2007.