Does this head gasket require any sealant during installation?

No, Cometic MLS head gaskets are designed to provide maximum sealing performance without the need for additional sealants. The Viton coating on the outer layers ensures a reliable seal.

What is the bore size and thickness of this gasket?

This gasket is designed for a 4.630 inch bore and has a compressed operating thickness of 0.060 inches.

Specifications

Brand: Cometic Gasket
Part #: C5334-060
UPC: 191070055493

Cometic GM Gen-V/VI Big Block V8 .060in MLS Cylinder Head Gasket - 4.630in Bore

Name: Cometic GM Gen-V/VI Big Block V8 .060in MLS Cylinder Head Gasket - 4.630in Bore
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-gm-gen-v-vi-big-block-v8-060in-mls-cylinder-head-gasket-4-t14-806642
Price: 152.35 USD
Availability: BackOrder

$152.35

On Backorder

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

Cometic GM Gen-V/VI Big Block V8 MLS head gasket. Features a 0.060in compressed thickness and 4.630in bore for reliable sealing.

Key Features

Fits a wide range of GM Gen-V/VI Big Block V8 vehicles.
Multi-Layer Steel (MLS) construction offers increased strength and corrosion resistance.
Outer layers are embossed and coated with Viton rubber for heat resistance up to 482°F (250°C).
Designed for reliable sealing between aluminum heads and aluminum or cast iron blocks.
Features a 0.060 inch compressed operating thickness.
Accommodates a 4.630 inch bore size.

⚠️ 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

When you're rebuilding the top end of your GM Gen-V/VI Big Block V8, you need a head gasket that can handle the pressure. This Cometic Multi-Layer Steel (MLS) gasket is built for that job. It's designed to provide a strong seal between your cylinder head and block, which is crucial for keeping combustion pressures contained and coolant where it belongs.

What you get here is a well-built gasket made from multiple layers of stainless steel. The outer layers are coated with Viton, a heat-resistant rubber material that can handle tough sealing conditions and different surface finishes on aluminum or cast iron blocks. This construction means the gasket can handle the forces created when mating different metals, like aluminum heads to cast iron blocks. The compressed thickness is 0.060 inches, and it's made for a 4.630-inch bore, fitting a wide range of GM Big Block V8 applications, including many Chevrolet and GMC trucks from the early 90s to the early 2000s.

Because it's an MLS gasket, it doesn't require any additional sealants, making installation more straightforward. The stainless steel layers also help resist corrosion and provide strength.