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

MLS gaskets, like this Cometic C5445-140, use multiple layers of stainless steel. This construction provides superior strength and sealing capabilities compared to older gasket materials, especially under high heat and pressure conditions common in performance engines.

What does the Viton coating on the gasket do?

The Viton rubber coating on the outer layers of the gasket helps create a robust seal. It's designed to withstand high temperatures and meet the demands of various sealing environments, ensuring a reliable seal between the cylinder head and engine block.

Does this gasket come with any hardware or sealant?

This product is for the Cometic cylinder head gasket only. It is designed to be a direct replacement and does not typically include additional hardware or sealant; refer to your vehicle's service manual or a trusted mechanic for installation requirements.

Specifications

Brand: Cometic Gasket
Part #: C5445-140
UPC: 191070443733

Cometic Chrysler Gen-2 Hemi .051in MLS Cylinder Head Gasket - 4.250in Bore

Name: Cometic Chrysler Gen-2 Hemi .051in MLS Cylinder Head Gasket - 4.250in Bore
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-chrysler-gen-2-hemi-051in-mls-cylinder-head-gasket-4-250i-t14-807139
Price: 249.06 USD
Availability: BackOrder

$249.06

On Backorder

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

Cometic Chrysler Gen-2 Hemi .051in MLS Cylinder Head Gasket - 4.250in Bore. A well-built MLS gasket for demanding Gen-2 Hemi builds.

Key Features

Fits 1966-1971 Dodge Challenger, Charger, Coronet, and Plymouth Barracuda, Cuda, GTX, Road Runner, and more.
Multi-Layer Steel (MLS) construction with three to five stainless steel layers for increased strength and durability.
Stainless steel offers good rebound characteristics and resistance to corrosion.
Outer layers are embossed and coated with Viton rubber on both sides for a reliable seal in harsh environments.
Viton coating is heat resistant up to 482°F (250°C).
Features a 4.250-inch bore and a .051-inch thickness, specific for Chrysler Gen-2 Hemi engines.

⚠️ 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

What you get here is a Cometic Multi-Layer Steel (MLS) cylinder head gasket specifically made for Chrysler Gen-2 Hemi engines. This gasket has a 4.250-inch bore and is .051 inches thick, designed to seal the combustion chamber and coolant passages between your cylinder head and engine block. It's a well-built component that's crucial for maintaining proper compression and preventing leaks in these classic Mopar V8s.

Cometic builds these gaskets using three to five layers of stainless steel. They chose stainless steel because it's strong, resists corrosion, and can rebound well under pressure. The outer layers are treated with a Viton rubber coating on both sides. This coating is tough and can handle high temperatures, up to 482°F (250°C), making it suitable for the demanding conditions found in a performance Hemi engine. This construction helps ensure a reliable seal even with different surface finishes on your block and heads.

This gasket fits a range of classic Dodge and Plymouth vehicles from the late 60s and early 70s, including models like the Dodge Charger, Plymouth Barracuda, and Dodge Challenger. It's a solid option if you're rebuilding or restoring your Gen-2 Hemi engine and need a dependable head gasket.