What is the compressed thickness of this head gasket?

This Cometic MLS head gasket has a compressed operating thickness of 0.098 inches. This measurement is important for ensuring proper valve-to-piston clearance and compression ratios after installation.

Does this gasket require any special installation procedures or sealants?

No, this Multi-Layer Steel (MLS) head gasket is designed to provide maximum sealing performance without the need for additional sealants. Always refer to the manufacturer's installation instructions for specific torque sequences and procedures.

What does the .040in designation mean for this head gasket?

The .040in designation indicates that this gasket is 0.040 inches oversized compared to a standard bore size. This is often used when an engine block has been bored out during a rebuild to ensure proper sealing.

Specifications

Brand: Cometic Gasket
Part #: C5987-040
UPC: 191070145705

Cometic AMC 4.0L Inline 6 .040in MLS Cylinder Head Gasket - 3.950in Bore

Name: Cometic AMC 4.0L Inline 6 .040in MLS Cylinder Head Gasket - 3.950in Bore
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-amc-4-0l-inline-6-040in-mls-cylinder-head-gasket-3-950in--t14-807389
Price: 101.81 USD
Availability: BackOrder

$101.81

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Fits 1987-2001 Jeep Cherokee. Cometic AMC 4.0L Inline 6 .040in MLS Head Gasket with Viton coating for improved sealing.

Key Features

1987-2001 Jeep Cherokee fitment.
Multi-Layer Steel (MLS) construction offers increased strength and corrosion resistance.
Outer layers are embossed and coated with heat-resistant Viton rubber.
Designed for high output engines and compatible with aluminum or cast iron blocks and heads.
No additional sealants are required for installation.
Compressed operating thickness is 0.098 inches.

⚠️ 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 for your AMC 4.0L inline 6 engine. If you're rebuilding the top end of your Jeep Cherokee, Comanche, Grand Cherokee, Wagoneer, or Wrangler, a solid head gasket is crucial for keeping your combustion chambers sealed and your engine running smoothly. This gasket is specifically designed to handle the demands of higher output engines, ensuring reliable performance.

This MLS gasket is constructed with multiple layers of stainless steel for increased strength and resistance to corrosion. The outer layers are embossed and coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482°F (250°C). This advanced coating helps create a strong seal, even between different block and head materials like aluminum and cast iron, and it doesn't require any additional sealants. The center layer is stainless steel, and its thickness can be varied to achieve different compressed operating thicknesses; this particular gasket has a compressed thickness of 0.098 inches and a bore size of 3.950 inches, and it's 0.040 inches oversized.