Freedom Series Cylinder Head (Street HD)

Features:

• Supports up to 700 horsepower reliably
• Ideal for towing, daily driving, and work use
• Fully remanufactured to factory-level specs
• Upgraded oversized hardened valve seats
• Includes 11 screw-in freeze plugs
• Prevents coolant leaks and sealing issues
• Fleece 105 lb. valve springs installed
• Tool steel retainers for long-term durability
• New valve guide liners for consistent operation
• Rigorously tested, machined, and painted
• Built in Fleece's advanced machine facility
• Core return required after purchase

Built To Handle The Heat And Keep You Moving

When you rely on your 6.7L Cummins to pull heavy loads, tackle tough jobs, or take on long hauls, you need a cylinder head that can keep up. The Fleece FPE-61-10007-HD Freedom Series Street HD Cylinder Head is built to deliver lasting strength and dependability where it matters most. Rated for up to 700 horsepower, it offers the perfect mix of daily reliability and heavy-duty performance for work or play. This head is fully remanufactured to factory specs, but every weak point has been upgraded to handle modern power levels with ease. Fleece replaces the factory press-in freeze plugs with 11 screw-in plugs to eliminate coolant leaks and strengthen sealing performance under pressure. It’s also fitted with oversized hardened valve seats and 105 lb. valve springs to maintain proper valve control during high-boost conditions. Whether you’re towing up a mountain or passing on the highway, this head keeps your Cummins breathing strong and running cool mile after mile.

Precision Built From The Ground Up For Performance

The Freedom Series HD Street Cylinder Head is more than a simple rebuild, it’s a complete re-engineering of the original Cummins design with reliability at its core. Each head starts as a factory casting that’s stripped, cleaned, and machined in Fleece’s advanced facility to ensure perfect flatness and sealing. The addition of new valve guide liners, hardened oversized valve seats, and tool steel retainers ensures consistent performance under high exhaust temperatures and heavy boost pressure. Every unit is thoroughly pressure tested, decked, and coated for long-lasting protection against heat and corrosion. Fleece’s use of 105 lb. valve springs adds the strength needed to handle aggressive tunes or upgraded turbo setups without valve float. Assembled and inspected by expert machinists, each cylinder head leaves the shop ready for a direct drop-in installation. With its combination of precision machining and upgraded internals, it’s an ideal solution for anyone who demands both street reliability and heavy-duty performance from their 6.7L Cummins.

Fitment: 2007.5, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Dodge RAM 2500/3500 6.7L Cummins

Notes:

• Fits 2007.5-2018 Dodge RAM 2500/3500 6.7L Cummins engines
• Rated for up to 700 horsepower applications
• Core return is required after purchase
• Head gasket is not included with purchase
• Recommended head gasket: Mahle 54774 or Cummins 4932210
• Valve lash adjustment must be performed during installation
• Rocker arm adjusters must be backed off before install
• Professional installation is highly recommended
• Legal for use in all 50 states when part of an emissions-compliant engine
• Does not require an EO number since it is a replacement component