Freedom Series Cylinder Head Performance

Features:

• Fits 2007.5-2018 RAM 2500 and 3500 6.7L Cummins
• Rated to handle up to 1,100 horsepower
• Fire-ringed head for superior boost sealing
• Includes fire ring gasket and steel rings
• 11 screw-in freeze plugs prevent coolant leaks
• Manley 1.380" stainless steel performance valves
• Oversized, hardened press-in valve seats
• New valve guide liners installed and ready
• Comes with 105 lb valve springs and retainers
• Decked, pressure tested, and painted for install
• Core return required with included return instructions
• Ideal for towing, racing, or high-boost builds

Built For Power Whether You Tow Or Tear It Up

When you’re chasing more power out of your 6.7L Cummins, the Fleece Freedom Series Performance Cylinder Head delivers the strength and flow you need without compromising durability. Whether you're towing a loaded trailer through mountain grades or launching hard at the track, this head is designed to keep up. Rated to handle up to 1,100 horsepower, it comes ready to install with everything precision machined and quality checked in-house. The fire-ringed design ensures a tight seal under high boost, giving you peace of mind when you're pushing your setup. With 11 screw-in freeze plugs, it eliminates a common failure point and keeps your coolant where it belongs. Larger Manley stainless valves and 105 lb valve springs provide improved airflow and valve control under extreme load. If you're building a serious street truck or weekend warrior, this cylinder head gives you the foundation to take it further without looking back.

Designed For High Boost And High Expectations

The Fleece Performance Freedom Series Cylinder Head for 2007.5-2018 6.7L Cummins trucks is engineered to outperform stock under the harshest conditions. Each head is pressure checked, decked, and fire-ringed to handle extreme combustion pressures, making it ideal for high-horsepower applications. The fire ring gasket kit includes 4.550 inch steel rings that match the head precisely, maintaining a consistent seal under boost. Oversized Manley 1.380 inch stainless valves are paired with hardened press-in valve seats and new guide liners to ensure durability at high RPM and heavy load. The 105 lb valve springs and steel retainers are spec’d to control valvetrain movement and resist float when pushed beyond factory limits. Eleven screw-in freeze plugs provide extra security against coolant leaks, especially under the valve cover where failures often occur. Everything comes assembled, painted, and ready for install, with clear instructions and return paperwork for the core and crate. This head is the go-to choice for Cummins owners who refuse to settle for average performance.

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

Freedom Series Performance heads Include:

• Fire ring the cylinder head (All in the head)
• 11 screw in freeze plugs (eliminates coolant leaks)
• Hardened, oversized press in valve seats
• New valve guide liners
• Manley 1.380 inch stainless valves
• 105 valve springs and steel retainers
• Fire ring gasket kit with multi-layer steel gasket and 4.550 inch diameter rings

Notes:

• Core and crate return required - all paperwork and instructions for return included with the new cylinder head. You are responsible for all return shipping costs of the core.
• Follow all installation instructions; Valve lash required. Back off adjusters on rocker arms or damage will occur to the cylinder head.