What does the .060in size mean for this gasket?

The .060 inch measurement indicates that the gasket is undersized compared to a standard bore. This is often done to allow for custom porting and matching to aftermarket cylinder heads, ensuring a precise fit for your specific engine build.

What is the Viton coating on the gasket?

The Viton coating is a special rubber material applied to the outer layers of the gasket. It's designed to handle harsh sealing environments and high temperatures, up to 482°F (250°C), and helps create a reliable seal between the cylinder head and the engine block.

Does this gasket come with any hardware?

This product is for the cylinder head gasket only. It does not include head bolts or any other installation hardware. You will need to source those separately if required for your engine rebuild.

Specifications

Brand: Cometic Gasket
Part #: C5400-060
UPC: 191070374075

Cometic Chevrolet Gen-1 Small Block V8 .060in MLS Cylinder Head Gasket - 4.125in Bore

Name: Cometic Chevrolet Gen-1 Small Block V8 .060in MLS Cylinder Head Gasket - 4.125in Bore
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-chevrolet-gen-1-small-block-v8-060in-mls-cylinder-head-ga-t14-805578
Price: 131.62 USD
Availability: BackOrder

$131.62

On Backorder

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

Cometic Chevrolet Gen-1 Small Block V8 .060in MLS Head Gasket - 4.125in Bore. Fits many 80-86 GM vehicles.

Key Features

Fits 1980-1986 Chevrolet and GMC vehicles with Gen-1 Small Block V8 engines.
Multi-Layer Steel (MLS) construction for increased strength and durability.
Features a 4.125 inch bore and is .060 inch undersize.
Embossed outer layers are coated with heat-resistant Viton rubber material.
Viton coating is resistant to temperatures up to 482°F (250°C).
Undersized water ports allow for custom porting and matching to aftermarket heads.

⚠️ 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?

About this part

Product Details

If you're rebuilding the top end of your Chevrolet Gen-1 Small Block V8, this Cometic Multi-Layer Steel (MLS) cylinder head gasket is a solid option. It's designed with a 4.125-inch bore and is .060 inches undersize, which is important to note if you're using aftermarket heads. The undersized water ports are intentionally made that way to allow for custom porting and matching to your specific setup.

Cometic builds these gaskets with three to five layers of stainless steel. They use stainless steel because it's strong, can rebound well, and resists corrosion. The outer layers are embossed and then coated on both sides with a Viton rubber material. This coating is heat resistant up to 482°F (250°C) and is made to handle tough sealing jobs and various surface finishes you might find on an engine block and heads.

This gasket fits a wide range of vehicles from the early 1980s, including popular models like the Chevrolet C10, Camaro, and GMC C1500. It's a well-built component for a critical sealing job in your engine.