What is the compressed thickness of this head gasket?

This Cometic MLS head gasket has a compressed operating thickness of 0.056 inches. This specific thickness is crucial for maintaining the correct compression ratio in your engine.

Do I need to use any sealant with this gasket?

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 against the engine block and cylinder head.

What materials can this gasket be used with?

This MLS gasket is suitable for use with both aluminum heads on aluminum blocks and aluminum heads on cast iron blocks. The multi-layer design helps manage the shearing forces that can occur between dissimilar metals.

Specifications

Brand: Cometic Gasket
Part #: C5762-056
UPC: 191070444006

Cometic GM L18 Vortec 8100 Gen-VII Big Block V8 .056in MLS Cylinder Head Gasket - 4.350in Bore - RHS

Name: Cometic GM L18 Vortec 8100 Gen-VII Big Block V8 .056in MLS Cylinder Head Gasket - 4.350in Bore - RHS
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-gm-l18-vortec-8100-gen-vii-big-block-v8-056in-mls-cylinde-t14-803606
Price: 152.35 USD
Availability: BackOrder

$152.35

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Cometic GM L18 Vortec 8100 Gen-VII Big Block V8 .056in MLS Cylinder Head Gasket - 4.350in Bore - RHS. Built with multiple stainless steel layers for maximum sealing.

Key Features

Fits 2001-2007 Chevrolet and GMC trucks and SUVs with GM L18 Vortec 8100 Gen-VII Big Block V8 engines.
Multi-Layer Steel (MLS) construction offers increased strength and corrosion resistance.
Outer layers are coated with Viton, a heat-resistant elastomer rated up to 482°F (250°C).
Designed for sealing aluminum heads to aluminum blocks or aluminum heads to cast iron blocks.
Requires no additional sealants for installation.
Features a 4.350-inch bore diameter.

⚠️ 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

Cometic Gasket is known for making well-built sealing components, and this Multi-Layer Steel (MLS) head gasket is a prime example. It’s designed specifically for GM L18 Vortec 8100 Gen-VII Big Block V8 engines, offering a 4.350-inch bore and a compressed thickness of 0.056 inches. This gasket fits a range of popular trucks and SUVs like the Chevrolet Silverado 2500 HD and GMC Yukon XL 2500, ensuring a solid seal for your engine rebuild.

This MLS gasket uses multiple layers of stainless steel, which gives it strength and helps it resist corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482°F (250°C) and works well with different engine materials like aluminum and cast iron. Because it's a multi-layer design, it can handle the stresses of high-output engines without needing any extra sealants, making installation more straightforward.