Fleece Freedom Series Cylinder Heads FPE-61-10004-P & FPE-61-10004-D | 2011-2016 Duramax LML

The Fleece Performance Freedom Series Cylinder Heads are high-quality remanufactured replacements for 2011–2016 GM 6.6L Duramax LML engines. Designed to restore reliability and performance, these cylinder heads are professionally rebuilt at the Freedom Racing Engine facility using strict inspection and machining standards to ensure consistent quality and durability.

Each cylinder head undergoes a detailed remanufacturing process that includes thorough cleaning, precision decking, pressure testing, and leak testing to verify structural integrity. Critical valvetrain components are replaced with new valve springs, valve seals, valve guides, and injector cups to help maintain proper sealing and dependable engine operation. The finished assembly is engineered to meet or exceed original equipment specifications, making it an ideal solution for both stock replacements and performance-oriented diesel builds.

These Freedom Series cylinder heads are available for both the driver and passenger side of the engine and are sold individually, allowing installers to replace only the necessary components or upgrade both sides during a rebuild.

• Vehicle Fitment: 2011–2016 GM 6.6L Duramax LML
• Available Positions: Driver side or passenger side cylinder head
• Remanufactured Assembly: Professionally rebuilt and inspected
• Machining Process: Cleaned, decked, pressure tested, and leak tested
• New Components: Includes valve springs, valve seals, valve guides, and injector cups
• Quality Standard: Meets or exceeds OEM specifications
• No Core Charge: No core return required
• Sold Individually: Select the appropriate side when ordering