What is the compressed thickness of this head gasket?

When properly installed and compressed, this Cometic head gasket has an operating thickness of .036 inches. The gasket itself is .056 inches thick before installation.

Does this gasket require any sealant?

No, this Multi-Layer Steel (MLS) head gasket is designed to provide a maximum seal without the need for any additional sealants. The Viton coating on the outer layers ensures a reliable seal.

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

Viton is a type of heat-resistant elastomer, rated for temperatures up to 482°F. It's used on the outer layers of this gasket to meet the demands of harsh sealing environments and ensure a durable, reliable seal under high heat conditions.

Specifications

Brand: Cometic Gasket
Part #: C4580-056
UPC: 191070116637

Cometic 75-78 Nissan L28/L28E Non Turbo 89mm .056in MLS Head Gasket

Name: Cometic 75-78 Nissan L28/L28E Non Turbo 89mm .056in MLS Head Gasket
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-75-78-nissan-l28-l28e-non-turbo-89mm-056in-mls-head-gaske-t14-524340
Price: 229.63 USD
Availability: BackOrder

$229.63

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

Fits 1975-1978 Nissan 280Z. Cometic .056in MLS head gasket with Viton coating for a reliable seal.

Key Features

Fits 1975-1978 Nissan 280Z and 1979-1980 Nissan 280ZX.
Multi-Layer Steel (MLS) construction with embossed stainless steel outer layers.
Outer layers are coated with Viton, a heat-resistant elastomer rated up to 482°F.
Features an 89mm bore and a compressed operating thickness of .036 inches.
This gasket has a thickness of .056 inches.
No sealants are required 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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Will it fit your car?

Fits these vehicles

Nissan 280Z 1975-1978
Nissan 280ZX 1979-1980

About this part

Product Details

This Multi-Layer Steel (MLS) head gasket from Cometic is built with embossed outer layers coated in Viton, a heat-resistant rubber material rated up to 482°F. It's designed specifically for the 1975-1978 Nissan 280Z with the L28 or L28E non-turbo engine, featuring an 89mm bore and a compressed operating thickness of .036 inches. MLS gaskets are a solid choice for high-output engines because their multiple stainless steel layers offer increased strength and resistance to corrosion, helping them handle the forces created when mating different block and head materials, like aluminum to cast iron.

The center layer of this gasket is uncoated stainless steel, allowing for precise thickness control. This particular gasket is .056 inches thick, which is important for maintaining proper compression ratios. Because it's an MLS design, it doesn't require any additional sealants, making installation more straightforward. This well-built gasket is ideal for rebuilding or repairing the top end of your L28 engine, ensuring a strong seal for years to come.