What is the bore size and thickness of this head gasket?

This Cometic head gasket features a 4.200 inch bore and is 0.040 inches thick. These dimensions are critical for proper fitment and sealing on specific LS engine configurations.

What does the HP shim technology do?

The HP shim technology is integrated into the gasket to increase the clamping force around the combustion chamber. This helps to create a stronger seal, particularly beneficial for engines with open deck blocks.

What is the benefit of the Viton coating on the gasket?

The Viton coating on the embossed outer layers provides excellent resistance to high temperatures and various chemicals. This helps the gasket maintain its sealing integrity under the harsh conditions found in an engine's combustion chamber.

Specifications

Brand: Cometic Gasket
Part #: C15517-040
UPC: 191070544454

Cometic ChevroletLS1/LS2/LS3/LS6 Gen-III/IV SBC V8 4.200 mm Bore .040in MLS Cylinder Head Gasket

Name: Cometic ChevroletLS1/LS2/LS3/LS6 Gen-III/IV SBC V8 4.200 mm Bore .040in MLS Cylinder Head Gasket
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-chevroletls1-ls2-ls3-ls6-gen-iii-iv-sbc-v8-4-200-mm-bore--t14-447163
Price: 97.74 USD
Availability: BackOrder

$97.74

On Backorder

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Cometic MLS head gasket for Chevrolet LS Gen-III/IV V8 engines. Features HP shim tech and Viton coating for improved sealing.

Key Features

Fits many Chevrolet LS Gen-III/IV V8 engines.
Features a 4.200 inch bore and 0.040 inch thickness.
Multi-Layer Steel (MLS) construction for durability.
HP shim technology increases clampload around the combustion chamber for improved sealing.
Embossed outer layers are coated with Viton for enhanced heat and chemical resistance.

⚠️ 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

This Cometic Multi-Layer Steel (MLS) head gasket is built with a 4.200 inch bore and is 0.040 inches thick, making it suitable for a wide range of Chevrolet LS Gen-III/IV V8 engines. The advanced HP shim technology is designed to increase clamping force around the combustion chamber. This helps to improve the sealability, especially on open deck blocks, ensuring a solid seal under pressure.

The outer layers of this gasket are embossed and coated with Viton, a high-performance fluoroelastomer known for its resistance to heat and chemicals. This coating further enhances the gasket's ability to maintain a seal in demanding conditions. It fits many vehicles, including models like the Chevrolet Camaro, Corvette, and Silverado 1500, among others.