What is the compressed thickness of this head gasket?

The compressed operating thickness of this Cometic MLS head gasket is 0.098 inches. This measurement is important for ensuring proper valve-to-piston clearance and overall engine assembly.

Do I need to use any sealant with this gasket?

No, Cometic MLS head gaskets are designed to provide maximum sealing performance without the need for additional sealants. The multi-layer steel construction and Viton coating create a robust seal on their own.

What is the advantage of Multi-Layer Steel (MLS) construction?

MLS construction offers increased strength and durability compared to single-layer gaskets. The multiple stainless steel layers help the gasket rebound and resist corrosion, making it ideal for high-output engines.

Specifications

Brand: Cometic Gasket
Part #: C5763-040
UPC: 191070139544

Cometic GM L18 Vortec 8100 Gen-VII Big Block V8 .040in MLS Cylinder Head Gasket - 4.450in Bore - RHS

Name: Cometic GM L18 Vortec 8100 Gen-VII Big Block V8 .040in MLS Cylinder Head Gasket - 4.450in Bore - RHS
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-gm-l18-vortec-8100-gen-vii-big-block-v8-040in-mls-cylinde-t14-803610
Price: 108.99 USD
Availability: BackOrder

$108.99

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Cometic GM L18 Vortec 8100 Gen-VII Big Block V8 .040in MLS head gasket. Designed for high output engines, it offers maximum sealing performance.

Key Features

Fits 2001-2007 Chevrolet and GMC trucks and SUVs with the GM L18 Vortec 8100 Gen-VII Big Block V8 engine.
Multi-Layer Steel (MLS) construction offers increased strength and corrosion resistance.
Viton rubber coating on outer layers provides excellent heat resistance up to 482 F.
Compressed operating thickness is 0.098 inches.
Features a 4.450 inch bore size.
Requires no additional sealants for installation.

⚠️ 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

If you're working on a GM L18 Vortec 8100 Gen-VII Big Block V8 engine, this Cometic Multi-Layer Steel (MLS) head gasket is built to handle the demands of high-output applications. It's designed to provide a solid seal between the cylinder head and the engine block, which is crucial for maintaining compression and preventing coolant or oil leaks. This gasket is specifically sized at 0.040 inches compressed thickness with a 4.450-inch bore, making it a precise fit for these powerful V8 engines found in vehicles like the Chevrolet Silverado 2500 HD and GMC Sierra 2500 HD.

Cometic constructs these MLS gaskets from multiple layers of stainless steel, which gives them increased strength and resistance to corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit. This advanced construction means the gasket can effectively seal aluminum heads to aluminum blocks, or aluminum heads to cast iron blocks, without needing any additional sealants. The multi-layer design also allows the gasket to rebound and maintain its seal under the significant forces generated by these big block engines.

This gasket is a well-built option for rebuilding or repairing your Vortec 8100. It's designed to fit a range of Chevrolet and GMC trucks and SUVs from the early 2000s, ensuring you get a reliable seal for your engine.