Enhance your 2006-2007 GM, GMC, or Chevy Truck’s 6.6L Duramax LBZ engine with our durable and reliable cylinder heads. Designed for exact fit and superior performance, these heads ensure consistent engine operation and longevity under demanding conditions

Original price was: $690.00.Current price is: $650.00.

In Stock


New GM GMC Chevy Truck 6.6 Duramax Diesel LBZ Cylinder Heads (VIN Code D)



Upgrade your GM, GMC, or Chevy Truck’s performance with our premium 6.6 Duramax Diesel LBZ Cylinder Heads. Specifically engineered for the 6.6L LBZ engine, these cylinder heads are perfect for 2006-2007 models identified by VIN Code D. Our cylinder heads promise not only enhanced engine performance but also superior reliability and durability, making them an ideal choice for demanding applications.

***Please note this listing is for one cylinder head and not the pair. If you need a pair then please see this listing:

Key Features

Superior Material & Precision Engineering
Crafted from high-quality cast aluminum, these cylinder heads are designed to withstand the rigorous demands of diesel engines. The advanced casting process ensures minimal porosity and increased strength, providing better heat dissipation and resistance to cracking and warping.

Optimized Valve Configuration
Featuring an optimized valve configuration with high-grade Inconel exhaust valves and stainless-steel intake valves, our cylinder heads ensure superior airflow and combustion efficiency. This design boosts engine performance by enhancing power output and fuel economy, making it ideal for heavy-duty tasks.

Comprehensive Durability Testing
Each cylinder head undergoes rigorous testing, including pressure tests, crack detection, and dimensional accuracy checks, ensuring they meet or exceed OEM specifications. This guarantees longevity and reliable performance under high-stress conditions, reducing the likelihood of unexpected engine issues.

Pre-Assembled for Convenience
Our cylinder heads come fully assembled with valves, springs, retainers, and valve locks. This pre-assembly not only simplifies the installation process but also ensures that all components are perfectly matched for optimal engine performance. It also minimizes installation time and reduces the risk of assembly errors.


Enhanced Engine Performance
By improving airflow and combustion, our cylinder heads significantly boost your truck’s horsepower and torque. This results in better acceleration, towing capacity, and overall driving experience. The increased efficiency also contributes to better fuel economy, saving you money on fuel costs.

Extended Engine Life
The use of high-quality materials and rigorous manufacturing standards ensures that these cylinder heads can handle the stresses of high-performance engines, extending the life of your 6.6L Duramax LBZ engine. This reduces the frequency of repairs and maintenance, ensuring long-term reliability.

Environmentally Friendly
Our cylinder heads contribute to a more efficient combustion process, resulting in lower emissions and a reduced carbon footprint. By optimizing your engine’s performance, you are not only saving on fuel costs but also contributing to a cleaner environment.

Cost-Effective Solution
Replacing worn or damaged cylinder heads with our new, high-performance units is a cost-effective solution compared to a complete engine replacement. The enhanced durability and performance can help you avoid costly repairs and downtime, making it a wise investment for your vehicle.

Technical Specifications

  • Engine Compatibility: GM, GMC, Chevy Trucks with 6.6L Duramax LBZ engines (2006-2007)
  • Material: High-strength cast aluminum
  • Valve Configuration: 4-valve per cylinder, Inconel exhaust valves, stainless steel intake valves
  • Assembled Components: Valves, springs, retainers, and valve locks
  • Part Number: [Specify if known, e.g., OEM-compatible part numbers]
  • Warranty: Comprehensive 24-month warranty

Why Choose Our Duramax Diesel Cylinder Heads?

Top-Quality Construction and Performance
Our cylinder heads are meticulously crafted to meet the highest standards of quality and performance. Whether you’re using your truck for daily driving, heavy towing, or off-road adventures, our cylinder heads ensure that your 6.6L Duramax LBZ engine delivers exceptional performance and reliability.

Expertise and Support
At Clearwater Cylinder Head, we pride ourselves on our extensive knowledge and experience with high-performance diesel engines. Our team is available to provide expert advice and support, helping you make the best choice for your vehicle’s needs.

Comprehensive Warranty and Assurance
We offer a 24-month warranty on our cylinder heads, giving you confidence in their durability and performance. Our customer support team is always ready to assist you with any issues or concerns, ensuring a smooth and worry-free experience.

Installation and Maintenance Tips

  1. Professional Installation Recommended: Although our cylinder heads come pre-assembled for convenience, we recommend professional installation to ensure proper fit and function.
  2. Regular Maintenance: To maintain optimal performance, follow regular maintenance schedules, including timely oil changes and coolant checks, to keep your engine running smoothly.
  3. Check Compatibility: Ensure that these cylinder heads are compatible with your vehicle by verifying your truck’s VIN code and engine specifications before purchase.

Purchase and Learn More

Upgrade your 2006-2007 GM, GMC, or Chevy Truck with our 6.6 Duramax Diesel LBZ Cylinder Heads. Check out our other Duramax heads we have for sale here:

For more info on the Duramax family of engines:

For further information or to explore our full range of high-performance engine components, contact our expert team today.