LLY Duramax New Cylinder Head Loaded with Valve Train – DK Engines (DK-GMLLY-CHL)

Restore performance and reliability to your 2004.5–2005 GM 6.6L LLY Duramax with this brand-new cylinder head from DK Engines. This is a complete, ready-to-install solution — not a remanufactured or bare head.

Each head is precision-cast from high-quality aluminum and comes fully loaded with a complete new valve train. You get brand-new valves (black nitride coated for superior wear resistance), valve springs, retainers, keepers, seals, and seats already installed. This saves significant time and money compared to rebuilding or machining an old head and sourcing individual components.

Key Features & Benefits:

• New aluminum casting – Excellent heat dissipation and lighter weight than cast iron alternatives
• Fully loaded valve train – Includes all-new black nitride coated valves, springs, retainers, keepers, and seals
• Black nitride coated valves – Superior wear resistance and longevity under the high heat and pressure of diesel operation
• Ready to bolt on – No disassembly, cleaning, or machine shop work required
• Direct fit for LLY Duramax – Engineered specifically for 2004.5–2005 6.6L LLY engines (VIN Code 2)
• No core charge – Brand new, no return hassles
• 1-Year Limited Warranty

The LLY Duramax is known for occasional head gasket and head-related issues. Installing a fresh, fully loaded cylinder head is one of the most effective ways to restore compression, eliminate leaks, and get your truck running strong again.

Note: Cylinder heads are sold individually.