What is the compressed thickness of this head gasket?

The compressed operating thickness for this Cometic MLS head gasket is 0.036 inches. This measurement is achieved through the specific layering and materials used in its construction.

Do I need to use sealant with this gasket?

No, this Cometic Multi-Layer Steel (MLS) head gasket is designed to provide maximum sealing performance on its own and does not require any additional sealants.

What is Viton and why is it used on this gasket?

Viton is a heat-resistant rubber material that can withstand high temperatures, up to 482 degrees Fahrenheit. It's coated on the outer layers of this gasket to meet the demands of harsh sealing environments and ensure a reliable seal.

Specifications

Brand: Cometic Gasket
Part #: C5446-140
UPC: 191070536329

Cometic Chrysler Gen-2 Hemi .140in MLS Cylinder Head Gasket - 4.375in Bore

Name: Cometic Chrysler Gen-2 Hemi .140in MLS Cylinder Head Gasket - 4.375in Bore
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-chrysler-gen-2-hemi-140in-mls-cylinder-head-gasket-4-375i-t14-807152
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 Gasket MLS head gasket for Chrysler Gen-2 Hemi engines. Features Viton coating and 4.375in bore.

Key Features

Fits 1966-1971 Dodge and Plymouth vehicles with Chrysler Gen-2 Hemi engines.
Multi-Layer Steel (MLS) construction offers increased strength and corrosion resistance.
Outer layers are coated on both sides with heat-resistant Viton rubber.
Designed for a 4.375-inch bore and a compressed operating thickness of 0.036 inches.
Suitable for mating aluminum heads to aluminum blocks or aluminum heads to cast iron blocks.
Does not require 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

Cometic Gasket is well-known for making reliable sealing solutions, and this Multi-Layer Steel (MLS) head gasket is a prime example. It's built for Chrysler Gen-2 Hemi engines and features a 4.375-inch bore, making it suitable for a range of classic Mopar muscle cars like the Dodge Challenger, Dodge Charger, and Plymouth Barracuda from the late 60s and early 70s. This gasket is designed to handle the demands of high-output engines, ensuring a strong seal between your cylinder head and block.

What makes this gasket stand out is its construction. It's made from multiple layers of stainless steel, which gives it increased strength and the ability to rebound, helping it resist corrosion. The outer layers are coated on both sides with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit. This coating is crucial for meeting the challenges of various sealing environments and surface finishes, especially when mating aluminum heads to cast iron blocks. The center layer is stainless steel and can be varied to achieve different compressed thicknesses, with this particular gasket having a compressed operating thickness of 0.036 inches.

Because it's a Multi-Layer Steel gasket with Viton coating, it doesn't require any additional sealants, simplifying installation. This makes it a solid option whether you're rebuilding your top end or just replacing worn-out gaskets on your classic Hemi.