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Fleece Performance engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Fleece Performance lineup with fast shipping and expert fitment support — order with confidence.
The Fleece Performance Freedom Cylinder Head for the 2001-2004 GM Duramax LB7 is designed to solve common injector bore issues while providing a significant upgrade in durability. This driver-side head features a unique cupless injector bore design, eliminating the failure-prone factory cups and providing a more reliable seal for your fuel injectors.
By removing the traditional injector cups, this head design eliminates the potential for coolant-to-fuel contamination, a known weak point in the LB7 platform. Whether you are performing a routine engine overhaul or building a high-horsepower Duramax, the Freedom Cylinder Head provides the peace of mind that your engine is built to last. Precision machining and high-quality materials ensure that this component meets the rigorous demands of diesel performance enthusiasts. Upgrade your Duramax with the best in engine technology. Shop the full selection of performance heads at GGCRACING.
| Years | Make | Model | Trim |
|---|---|---|---|
| 2001-2004 | Chevrolet | Silverado 2500 HD | Base |
| 2001-2004 | Chevrolet | Silverado 2500 HD | LS |
| 2001-2004 | Chevrolet | Silverado 2500 HD | LT |
| 2004 | Chevrolet | Silverado 2500 HD | WT |
| 2001-2004 | Chevrolet | Silverado 3500 | Base |
| 2001-2004 | Chevrolet | Silverado 3500 | LS |
| 2001-2004 | Chevrolet | Silverado 3500 | LT |
| 2004 | Chevrolet | Silverado 3500 | WT |
| 2001-2002 | GMC | Sierra 2500 HD | SL |
| 2001-2004 | GMC | Sierra 2500 HD | SLE |
| 2001-2004 | GMC | Sierra 2500 HD | SLT |
| 2002-2004 | GMC | Sierra 2500 HD | Base |
| 2003-2004 | GMC | Sierra 2500 HD | WT |
| 2001-2002 | GMC | Sierra 3500 | SL |
| 2001-2004 | GMC | Sierra 3500 | SLE |
| 2001-2004 | GMC | Sierra 3500 | SLT |
| 2002-2004 | GMC | Sierra 3500 | Base |
| 2004 | GMC | Sierra 3500 | WT |
Other popular Fleece Performance products customers consider together:
Fleece Performance engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Fleece Performance lineup with fast shipping and expert fitment support — order with confidence.
The Fleece Performance Freedom Cylinder Head for the 2001-2004 GM Duramax LB7 is designed to solve common injector bore issues while providing a significant upgrade in durability. This driver-side head features a unique cupless injector bore design, eliminating the failure-prone factory cups and providing a more reliable seal for your fuel injectors.
By removing the traditional injector cups, this head design eliminates the potential for coolant-to-fuel contamination, a known weak point in the LB7 platform. Whether you are performing a routine engine overhaul or building a high-horsepower Duramax, the Freedom Cylinder Head provides the peace of mind that your engine is built to last. Precision machining and high-quality materials ensure that this component meets the rigorous demands of diesel performance enthusiasts. Upgrade your Duramax with the best in engine technology. Shop the full selection of performance heads at GGCRACING.
| Years | Make | Model | Trim |
|---|---|---|---|
| 2001-2004 | Chevrolet | Silverado 2500 HD | Base |
| 2001-2004 | Chevrolet | Silverado 2500 HD | LS |
| 2001-2004 | Chevrolet | Silverado 2500 HD | LT |
| 2004 | Chevrolet | Silverado 2500 HD | WT |
| 2001-2004 | Chevrolet | Silverado 3500 | Base |
| 2001-2004 | Chevrolet | Silverado 3500 | LS |
| 2001-2004 | Chevrolet | Silverado 3500 | LT |
| 2004 | Chevrolet | Silverado 3500 | WT |
| 2001-2002 | GMC | Sierra 2500 HD | SL |
| 2001-2004 | GMC | Sierra 2500 HD | SLE |
| 2001-2004 | GMC | Sierra 2500 HD | SLT |
| 2002-2004 | GMC | Sierra 2500 HD | Base |
| 2003-2004 | GMC | Sierra 2500 HD | WT |
| 2001-2002 | GMC | Sierra 3500 | SL |
| 2001-2004 | GMC | Sierra 3500 | SLE |
| 2001-2004 | GMC | Sierra 3500 | SLT |
| 2002-2004 | GMC | Sierra 3500 | Base |
| 2004 | GMC | Sierra 3500 | WT |
Other popular Fleece Performance products customers consider together: