What is the compressed thickness of this gasket?

The compressed operating thickness of this Cometic MLS head gasket is 0.036 inches. This measurement is important for ensuring proper compression ratios after installation.

Does this gasket require any sealant?

No, Cometic MLS head gaskets are designed to provide maximum sealing performance on their own and do not require additional sealants. The Viton coating on the outer layers ensures a tight seal.

What is the bore size of this gasket?

This cylinder head gasket features a 4.155 inch bore size. It is also specified as 0.030 inches undersize, which is a common size for engine rebuilding.

Specifications

Brand: Cometic Gasket
Part #: C5741-030
UPC: 191070138387

Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .030in MLS Cylinder Head Gasket - 4.155in Bore

Name: Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .030in MLS Cylinder Head Gasket - 4.155in Bore
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-chevrolet-4-3l-gen-1-90-degree-v6-030in-mls-cylinder-head-t14-805306
Price: 111.49 USD
Availability: BackOrder

$111.49

On Backorder

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Cometic Chevrolet 4.3L Gen-1 cylinder head gasket. MLS construction with Viton coating for high output engines.

Key Features

This product is a Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .030in MLS Cylinder Head Gasket.
It has a 4.155 inch bore size.
The gasket is constructed from multiple layers of stainless steel for increased strength and corrosion resistance.
Outer layers are embossed and coated with Viton, a heat-resistant rubber material.
The compressed operating thickness is 0.036 inches.
This gasket is designed for high output engines and does not require additional sealants.

⚠️ 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

This is a Cometic Multi-Layer Steel (MLS) cylinder head gasket, specifically designed for Chevrolet 4.3L Gen-1 90-degree V6 engines. It features a 4.155-inch bore and is 0.030 inches undersize, intended for rebuilding or replacing worn components. MLS gaskets are built with multiple layers of stainless steel, offering increased strength and resistance to corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that handles tough sealing environments and various surface finishes without needing additional sealants.

The multi-layer design of this gasket helps it rebound and withstand the forces created when mating different block and head materials, like aluminum to cast iron. With a compressed operating thickness of 0.036 inches, it's a solid option for high-output engines. This gasket fits a wide range of Chevrolet and GMC vehicles from the mid-80s to the mid-90s, including popular models like the Chevrolet S10 and GMC C1500.