Fleece Performance Freedom Series HD 20mm Dowel Cylinder Head for Select 2003-2007 Ford (6.0L / 6.4L) FPE-61-10012-HD

Fits select 2003-2007 Ford F-250/F-350 Super Duty, E-350 Super Duty, and Excursion (6.0L / 6.4L).

The Fleece Performance Freedom Series HD Cylinder Head is engineered to solve the common failure points of factory 6.0L Powerstroke castings. This is a completely new casting designed from the ground up, utilizing a higher tensile strength alloy with increased wall thickness in critical areas to prevent cracking and improve longevity under high cylinder pressures.

Unlike traditional heads that use multi-piece stainless wire O-rings with seams, this Freedom Series head features a unique single-piece hoop-style O-ring. This seamless design ensures a superior combustion seal, making it a critical upgrade for high-performance or heavy-towing applications. The head is finished with American-made tungsten alloy valve seats, providing exceptional wear resistance and stability compared to stock replacement seats.

• Manufacturer Part Number: FPE-61-10012-HD
• 20mm dowel configuration (fits 2-bolt rocker box setups)
• High-tensile strength alloy casting with increased wall thickness
• Tungsten alloy valve seats for extreme durability
• Single-piece hoop-style O-ring for seamless combustion sealing
• Note: Recommended for use with 6.4L pushrods (0.050” shorter) to accommodate tolerance stack ups
• Note: Head gasket (KZ3Z-6051-B) not included