Cometic StreetPro GM 6.6L Duramax Diesel V8 Top End Gasket Kit — Fits 2004-2007

SKU: CGSPRO3009T
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Cometic Gasket

Cometic Gasket is the world leader in custom multi-layer steel head gaskets for performance and motorsport engines. From off-the-shelf MLS for popular platforms to bespoke gaskets for race-only builds, Cometic seals everything from Honda B-series to LSX.

Cometic StreetPro Top End Gasket Kit for GM 6.6L Duramax Diesel

Revitalize your GM 6.6L Duramax Diesel engine with the Cometic StreetPro Top End Gasket Kit. Designed for the budget-conscious enthusiast, this comprehensive kit includes all the essential gaskets and seals needed for a successful engine rebuild or top-end overhaul. Cometic ensures that only quality gasket materials are used, providing reliability and performance for your Duramax.

Kit Contents and Benefits:

  • Comprehensive Top End Coverage: Includes all necessary gaskets and seals for the upper portion of your engine.
  • Quality Materials: Features a combination of premium materials such as MLS (Multi-Layer Steel), AFM, Aramid Fiber, and Armor Clad for superior sealing and durability.
  • Engineered for Duramax: Specifically designed for the 2004-2007 model years of the GM 6.6L Duramax V8 diesel engine.
  • 4.100 inch Bore Size: Precisely manufactured for the specified engine bore.
  • Cost-Effective Solution: Offers a high-quality, all-in-one solution for your gasket needs without breaking the bank.

Reliability for Your Diesel Rebuild

The Cometic StreetPro kit is the perfect choice for rebuilding or repairing your Duramax engine. These gaskets are built to withstand the demanding conditions of diesel operation, ensuring a long-lasting seal and optimal engine function. This kit is compatible with a wide range of GM trucks and vans, including Chevrolet Silverado, Express, and GMC Sierra, Savana models from 2004 to 2007. Ensure your diesel powerhouse is sealed correctly for maximum efficiency and power.

Get your Cometic StreetPro Top End Gasket Kit today at GGCRACING!

Vehicle Fitment

Years Make Model Trim
2006 Chevrolet Express 2500 LS
2006 Chevrolet Express 2500 LT
2006-2007 Chevrolet Express 2500 Base
2006-2007 Chevrolet Express 3500 Base
2005 Chevrolet Silverado 2500 HD Base
2005-2006 Chevrolet Silverado 2500 HD LS
2005-2007 Chevrolet Silverado 2500 HD WT
2007 Chevrolet Silverado 2500 HD LTZ
2007 Chevrolet Silverado 2500 HD Classic LS
2007 Chevrolet Silverado 2500 HD Classic LT
2007 Chevrolet Silverado 2500 HD Classic WT
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
2007 Chevrolet Silverado 3500 HD LTZ
2007 Chevrolet Silverado 3500 HD WT
2006-2007 GMC Savana 2500 Base
2006-2007 GMC Savana 3500 Base
2005 GMC Sierra 2500 HD Base
2005-2007 GMC Sierra 2500 HD WT
2005-2007 GMC Sierra 2500 HD SLE
2006 GMC Sierra 2500 HD SL
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
2005-2006 GMC Sierra 3500 SLT
2005-2006 GMC Sierra 3500 WT
2006 GMC Sierra 3500 SL
2007 GMC Sierra 3500 Classic SL
2007 GMC Sierra 3500 Classic SLE
2007 GMC Sierra 3500 Classic SLT
2007 GMC Sierra 3500 Classic WT
2007 GMC Sierra 3500 HD SLE
2007 GMC Sierra 3500 HD SLT
2006 Hummer H1 Alpha

Product Details

Product Description
Part Numbers
Sizing & Fit

About Cometic Gasket

Cometic Gasket is the world leader in custom multi-layer steel head gaskets for performance and motorsport engines. From off-the-shelf MLS for popular platforms to bespoke gaskets for race-only builds, Cometic seals everything from Honda B-series to LSX.

Cometic StreetPro Top End Gasket Kit for GM 6.6L Duramax Diesel

Revitalize your GM 6.6L Duramax Diesel engine with the Cometic StreetPro Top End Gasket Kit. Designed for the budget-conscious enthusiast, this comprehensive kit includes all the essential gaskets and seals needed for a successful engine rebuild or top-end overhaul. Cometic ensures that only quality gasket materials are used, providing reliability and performance for your Duramax.

Kit Contents and Benefits:

  • Comprehensive Top End Coverage: Includes all necessary gaskets and seals for the upper portion of your engine.
  • Quality Materials: Features a combination of premium materials such as MLS (Multi-Layer Steel), AFM, Aramid Fiber, and Armor Clad for superior sealing and durability.
  • Engineered for Duramax: Specifically designed for the 2004-2007 model years of the GM 6.6L Duramax V8 diesel engine.
  • 4.100 inch Bore Size: Precisely manufactured for the specified engine bore.
  • Cost-Effective Solution: Offers a high-quality, all-in-one solution for your gasket needs without breaking the bank.

Reliability for Your Diesel Rebuild

The Cometic StreetPro kit is the perfect choice for rebuilding or repairing your Duramax engine. These gaskets are built to withstand the demanding conditions of diesel operation, ensuring a long-lasting seal and optimal engine function. This kit is compatible with a wide range of GM trucks and vans, including Chevrolet Silverado, Express, and GMC Sierra, Savana models from 2004 to 2007. Ensure your diesel powerhouse is sealed correctly for maximum efficiency and power.

Get your Cometic StreetPro Top End Gasket Kit today at GGCRACING!

Vehicle Fitment

Years Make Model Trim
2006 Chevrolet Express 2500 LS
2006 Chevrolet Express 2500 LT
2006-2007 Chevrolet Express 2500 Base
2006-2007 Chevrolet Express 3500 Base
2005 Chevrolet Silverado 2500 HD Base
2005-2006 Chevrolet Silverado 2500 HD LS
2005-2007 Chevrolet Silverado 2500 HD WT
2007 Chevrolet Silverado 2500 HD LTZ
2007 Chevrolet Silverado 2500 HD Classic LS
2007 Chevrolet Silverado 2500 HD Classic LT
2007 Chevrolet Silverado 2500 HD Classic WT
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
2007 Chevrolet Silverado 3500 HD LTZ
2007 Chevrolet Silverado 3500 HD WT
2006-2007 GMC Savana 2500 Base
2006-2007 GMC Savana 3500 Base
2005 GMC Sierra 2500 HD Base
2005-2007 GMC Sierra 2500 HD WT
2005-2007 GMC Sierra 2500 HD SLE
2006 GMC Sierra 2500 HD SL
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
2005-2006 GMC Sierra 3500 SLT
2005-2006 GMC Sierra 3500 WT
2006 GMC Sierra 3500 SL
2007 GMC Sierra 3500 Classic SL
2007 GMC Sierra 3500 Classic SLE
2007 GMC Sierra 3500 Classic SLT
2007 GMC Sierra 3500 Classic WT
2007 GMC Sierra 3500 HD SLE
2007 GMC Sierra 3500 HD SLT
2006 Hummer H1 Alpha

Product Details

Product Description

About Cometic Gasket

Cometic Gasket is the world leader in custom multi-layer steel head gaskets for performance and motorsport engines. From off-the-shelf MLS for popular platforms to bespoke gaskets for race-only builds, Cometic seals everything from Honda B-series to LSX.

Cometic StreetPro Top End Gasket Kit for GM 6.6L Duramax Diesel

Revitalize your GM 6.6L Duramax Diesel engine with the Cometic StreetPro Top End Gasket Kit. Designed for the budget-conscious enthusiast, this comprehensive kit includes all the essential gaskets and seals needed for a successful engine rebuild or top-end overhaul. Cometic ensures that only quality gasket materials are used, providing reliability and performance for your Duramax.

Kit Contents and Benefits:

  • Comprehensive Top End Coverage: Includes all necessary gaskets and seals for the upper portion of your engine.
  • Quality Materials: Features a combination of premium materials such as MLS (Multi-Layer Steel), AFM, Aramid Fiber, and Armor Clad for superior sealing and durability.
  • Engineered for Duramax: Specifically designed for the 2004-2007 model years of the GM 6.6L Duramax V8 diesel engine.
  • 4.100 inch Bore Size: Precisely manufactured for the specified engine bore.
  • Cost-Effective Solution: Offers a high-quality, all-in-one solution for your gasket needs without breaking the bank.

Reliability for Your Diesel Rebuild

The Cometic StreetPro kit is the perfect choice for rebuilding or repairing your Duramax engine. These gaskets are built to withstand the demanding conditions of diesel operation, ensuring a long-lasting seal and optimal engine function. This kit is compatible with a wide range of GM trucks and vans, including Chevrolet Silverado, Express, and GMC Sierra, Savana models from 2004 to 2007. Ensure your diesel powerhouse is sealed correctly for maximum efficiency and power.

Get your Cometic StreetPro Top End Gasket Kit today at GGCRACING!

Vehicle Fitment

Years Make Model Trim
2006 Chevrolet Express 2500 LS
2006 Chevrolet Express 2500 LT
2006-2007 Chevrolet Express 2500 Base
2006-2007 Chevrolet Express 3500 Base
2005 Chevrolet Silverado 2500 HD Base
2005-2006 Chevrolet Silverado 2500 HD LS
2005-2007 Chevrolet Silverado 2500 HD WT
2007 Chevrolet Silverado 2500 HD LTZ
2007 Chevrolet Silverado 2500 HD Classic LS
2007 Chevrolet Silverado 2500 HD Classic LT
2007 Chevrolet Silverado 2500 HD Classic WT
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
2007 Chevrolet Silverado 3500 HD LTZ
2007 Chevrolet Silverado 3500 HD WT
2006-2007 GMC Savana 2500 Base
2006-2007 GMC Savana 3500 Base
2005 GMC Sierra 2500 HD Base
2005-2007 GMC Sierra 2500 HD WT
2005-2007 GMC Sierra 2500 HD SLE
2006 GMC Sierra 2500 HD SL
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
2005-2006 GMC Sierra 3500 SLT
2005-2006 GMC Sierra 3500 WT
2006 GMC Sierra 3500 SL
2007 GMC Sierra 3500 Classic SL
2007 GMC Sierra 3500 Classic SLE
2007 GMC Sierra 3500 Classic SLT
2007 GMC Sierra 3500 Classic WT
2007 GMC Sierra 3500 HD SLE
2007 GMC Sierra 3500 HD SLT
2006 Hummer H1 Alpha

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