# Cometic GM LLY/LBZ Duramax Top End Gasket Kit - 4.100in Bore - .053in MLX Cylinder Head Gasket

COMETIC StreetPro Kits cater to the budget-minded street-rodder who is looking to purchase a kit with all necessary gaskets and seals needed for their rebuild. Quality gasket materials are a priority in StreetPro kits. Kit materials include: MLS, AFM, Aramid Fiber, and Armor Clad.

-   Improved clamp load around the cylinder without increasing bore distortion
-   No Additional Sealer Needed

This Part Fits:

Year

Make

Model

Submodel

2006-2007

Chevrolet

Express 2500

Base

2006

Chevrolet

Express 2500

LS

2006

Chevrolet

Express 2500

LT

2006-2007

Chevrolet

Express 3500

Base

2005

Chevrolet

Silverado 2500 HD

Base

2005-2006

Chevrolet

Silverado 2500 HD

LS

2005-2006

Chevrolet

Silverado 2500 HD

LT

2006

Chevrolet

Silverado 2500 HD

WT

2007

Chevrolet

Silverado 2500 HD Classic

LS

2007

Chevrolet

Silverado 2500 HD Classic

LT

2007

Chevrolet

Silverado 2500 HD Classic

WT

2005

Chevrolet

Silverado 3500

Base

2005-2006

Chevrolet

Silverado 3500

LS

2005-2006

Chevrolet

Silverado 3500

LT

2006

Chevrolet

Silverado 3500

WT

2007

Chevrolet

Silverado 3500 Classic

LS

2007

Chevrolet

Silverado 3500 Classic

LT

2007

Chevrolet

Silverado 3500 Classic

WT

2006-2007

GMC

Savana 2500

Base

2006-2007

GMC

Savana 3500

Base

2005

GMC

Sierra 2500 HD

Base

2006

GMC

Sierra 2500 HD

SL

2005-2006

GMC

Sierra 2500 HD

SLE

2005-2006

GMC

Sierra 2500 HD

SLT

2005-2006

GMC

Sierra 2500 HD

WT

2007

GMC

Sierra 2500 HD Classic

SL

2007

GMC

Sierra 2500 HD Classic

SLE

2007

GMC

Sierra 2500 HD Classic

SLT

2007

GMC

Sierra 2500 HD Classic

WT

2005

GMC

Sierra 3500

Base

2006

GMC

Sierra 3500

SL

2005-2006

GMC

Sierra 3500

SLE

2005-2006

GMC

Sierra 3500

SLT

2005-2006

GMC

Sierra 3500

WT

2007

GMC

Sierra 3500 Classic

SL

2007

GMC

Sierra 3500 Classic

SLE

2007

GMC

Sierra 3500 Classic

SLT

2007

GMC

Sierra 3500 Classic

WT

## Details

- **Price:** 1018.05 CAD
- **Vendor:** Cometic Gasket
- **Type:** Head Gaskets

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1018.05 CAD | In stock |

## Images

- 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-lly-lbz-duramax-top-end-gasket-kit-4-100in-bore-053in-mlx-cylinder-head-gasket)
> Updated: 2026-06-27