# Cometic GM LS1 (w/M.I.D. Sleeves) 4.165 inch Bore .040 inch MLS Head Gasket

Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.040". With MID Sleeves. Cometic MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two materials. MLS gaskets have increased strength because they are comprised of multiple layers of stainless steel; which also creates the ability to rebound and resist corrosion. The outer layers are embossed and coated on both sides with Viton (a flour elastomer rubber based material that is heat resistant to 250 C/ 482 F). Viton is designed to meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes. The center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements.

-   The embossed outer layers of the gaskets meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes
-   The center or shim layer is an uncoated stainless steel layer which can be varied to accommodate multiple thickness requirements
-   Requires less clamp load creating less bore distortion
-   Conforms load distribution across the sealing area
-   Embossed Outer Layers Coated w/Viton

This Part Fits:

Year

Make

Model

Submodel

2001-2004

Avanti

II

Base

2004-2007

Cadillac

CTS

V

2010-2015

Chevrolet

Camaro

SS

1998-2002

Chevrolet

Camaro

Z28

1998-2002

Chevrolet

Camaro

Z28 SS

2014-2015

Chevrolet

Camaro

ZL1

2003

Chevrolet

Corvette

50th Anniversary Edition

2003

Chevrolet

Corvette

50th Anniversary Edition Pace Car

1997-2013

Chevrolet

Corvette

Base

2010-2013

Chevrolet

Corvette

Grand Sport

1998

Chevrolet

Corvette

Indianapolis 500 Pace Car

2001-2004

Chevrolet

Corvette

Z06

2014-2017

Chevrolet

SS

Base

2005-2006

Chevrolet

SSR

Base

2006-2009

Chevrolet

Trailblazer

SS

1998-2002

Pontiac

Firebird

Formula

1998-2002

Pontiac

Firebird

Trans Am

2009

Pontiac

G8

GXP

2004-2006

Pontiac

GTO

Base

## Details

- **Price:** 155.95 CAD
- **Vendor:** Cometic Gasket
- **Type:** Head Gaskets

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 155.95 CAD | In stock |

## Images

- Photo - Primary
- Photo - Primary
- Photo - Primary
- Photo - Primary
- Photo - Primary
- Photo - Primary
- User 9
- Installation Instructions
- Logo Image

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/cometic-gm-ls1-w-m-i-d-sleeves-4-165-inch-bore-040-inch-mls-head-gasket)
> Updated: 2026-06-26