2004.5-2005 GM 6.6L LLY Duramax Replacement & Performance Cylinder Heads

Fits: 2004.5-2005 GM 6.6 Duramax LLYThe ProMaxx Bare Aluminum Cylinder Head allows you to custom build the cylinder heads you need for you 2004.5-2005 GM 6.6L Duramax LLY. ProMaxx Performance's cylinder head is the answer to Duramax's crack-prone cylinder heads. This cylinder head was designed ..

Fits: 2004.5-2005 GM 6.6L Duramax LLYIntroducing our Freedom Series cylinder heads the Chevy Duramax! Give new life to your Duramax with our fully re-manufactured cylinder heads. Each cylinder head is re-manufactured in our state-of-the-art Freedom Racing Engine shop and guaranteed to meet or exceed..

Fits: 2004.5-2005 GM 6.6L Duramax LLYThe Fleece FPE-61-10002-P Freedom Series Passenger Side Cylinder Head is a high-quality replacement for damaged cylinder head in your Duramax. Remanufactured in the top-of-the-line Freedom Racing Engine facility, this head is thoroughly inspected and engineered t..

Fits: 2004.5-2005 GM 6.6L Duramax LLY (Casting # 409-1)Install a remanufactured cylinder head from Diamond Advantage to get your 2004.5-2005 GM 6.6L Duramax LLY back on the road. Diamond Advantage cylinder heads are remanufactured to meet OE Specifications to deliver optimal performance. Every cylin..

Fits: 2004.5-2005 GM 6.6 Duramax LLYThe ProMaxx Aluminum Cylinder Head is a fully assembled replacement cylinder head for your 2004.5-2005 GM 6.6L Duramax LLY. This cylinder head from ProMaxx Performance is the remedy to Duramax's crack-prone cylinder heads. This replacement cylinder head was design..

Industrial Injection is proud to offer Brand New LLY Duramax Stock Cylinder Heads for your 2004.5-2005 GM Duramax. These brand-new GM OE cylinder heads have a reinforced casting to make them more durable and help eliminate cracking. Each head has been pressure tested and comes fully loaded. Featu..

The Industrial Injection LLY Duramax Stock Remanufactured Heads are designed to be a factory replacement. Complete ready to bolt on. Heads are first jet washed in a high pressure spray cabinet to remove oil and dirt, then glass beaded to remove carbon. Next they are checked by magnafluxing, (cast..

Fits: 2004.5-2010 GM 6.6L Duramax LLY/LBZ/LMMThe PPE Cast Iron Cylinder Head are an upgraded for the worn out or leaking cylinder head in your 2004.5-2010 Gm 6.6L Duramax. This cast iron cylinder head has a valvetrain with chromoly-silicone alloy intake valves and 214N alloy exhuast valves that have..

Valve Guide Seal, LB7/LLY/LBZ/LMM/LML, 2001+ DuramaxDURAMAX Valve Guide Seal-32 per engine-16 per head Part number: 13939..