Introducing our Freedom Series cylinder heads - Give new life to your engine with our fully remanufactured Cummins cylinder head. Each head is manufactured in our state-of-the-art cylinder head machine shop and guaranteed to meet or exceed factory specifications.
All heads are inspected, pressure checked, decked, painted, and ready for installation. Plus, the 11 screw in freeze plugs ensure you'll never worry about a coolant leak under the valve cover again.
Perfect for a daily driver or heavy duty towing, our Heavy Duty Street heads are rated for use up to 700hp. Freedom Series Heavy Duty Street heads Include: 11 Screw in Freeze Plugs (eliminates coolant leaks) Hardened, oversized press-in valve seats Fleece heavy duty 105 lb valve springs Fleece tool steel retainers New valve guide liners
Head gasket not included. We recommend the use of Mahle 54556A or Cummins 3958645. Core and crate return required - all paperwork and instructions for return included with the new cylinder head. Read our core charge policy here.
You are responsible for all return shipping costs of the core.
Installation by an experienced technician recommended. Valve lash required. Back off adjusters on rocker arms or damage will occur to the cylinder head. Core Return For Residential Customers For residential customers needing to return the cylinder head core we have partnered with Fastenal to provide a convenient freight service from Fastenal locations nationwide at a reduced cost.