What does 'MLS' mean for the cylinder head gaskets?

MLS stands for Multi-Layer Steel. These gaskets use multiple layers of steel with a special coating to provide a strong, reliable seal, especially in high-pressure and high-temperature engine environments. They are designed to be used without additional sealers.

What specific engine does this gasket kit fit?

This kit is designed for the GM Gen-3 LQ9 Vortec Small Block V8 engine. It's specifically built for engines with a 4.100-inch bore size.

Does this kit include all the gaskets needed for a complete top-end rebuild?

This kit is specifically for the top-end of the engine, including the critical cylinder head gaskets. It is designed to provide the essential seals for that section of the engine.

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Specifications

Brand: Cometic Gasket
Part #: PRO1037T
UPC: 191070087630

Cometic Street Pro GM LS V8 6.0L 4.100in Top End Gasket Kit

Name: Cometic Street Pro GM LS V8 6.0L 4.100in Top End Gasket Kit
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-street-pro-gm-ls-v8-6-0l-4-100in-top-end-gasket-kit-t14-218197
Price: 347.71 USD
Availability: BackOrder

$347.71

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Fits 2004-2007 Chevy Express 2500. Cometic Street Pro top end gasket kit with MLS head gaskets for improved sealing.

Key Features

Fits 2004-2007 Chevrolet Express 2500.
Designed for GM Gen-3 LQ9 Vortec Small Block V8 engines with a 4.100-inch bore.
Includes .051-inch thick Multi-Layer Steel (MLS) cylinder head gaskets for robust sealing.
No additional sealer is needed for installation.
Gaskets are proudly made in the USA with American-manufactured materials.
This is a top-end gasket kit.

⚠️ 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 working on the top end of your GM LS V8, especially the Gen-3 LQ9 Vortec, having the right gaskets is crucial for a solid seal. This Cometic Street Pro gasket kit is built for engines with a 4.100-inch bore, and it includes Multi-Layer Steel (MLS) cylinder head gaskets that are .051 inches thick. These MLS gaskets are designed to handle the increased pressures and temperatures common in modern, high-output engines, ensuring a reliable seal without needing extra sealants.

Cometic builds these kits in the USA using materials manufactured domestically, reflecting a commitment to quality. The Street Pro line is updated to meet the demands of engines producing more horsepower and higher cylinder pressures. This kit is specifically tailored for the GM Gen-3 LQ9 Vortec small block V8, making it a direct fit for the intended applications.

This kit covers the essential top-end sealing components you'll need for your rebuild or repair. Having a well-built gasket set like this helps ensure your engine performs as it should after the work is done.