
- Uncompromising Foundation: Starting with a brand-new casting, you eliminate the uncertainties associated with remanufactured or used components, ensuring a clean and precise starting point for enhanced performance.
- Enhanced Valvetrain Stability: Equipped with heavy-duty 103 lb. valve springs and a completely new, fully assembled valvetrain—including valves, seats, seals, and retainers—this head ensures precise valve control even under the most demanding conditions, preventing valve float and maintaining optimal combustion.
- The Science of Sealing: The integrated fire-ring design represents a significant advancement in combustion sealing. By creating a physical barrier within the cylinder head and precisely matching it with the included fire-ringed head gasket, this system effectively contains the immense cylinder pressures generated by high boost levels. This crucial feature directly combats the common issue of head gasket failure in performance applications, safeguarding your engine and investment.
- Ready for Installation: This comprehensive kit arrives complete with the precisely engineered fire-ringed head gasket and the fire rings themselves, ensuring a seamless and correct installation process right out of the crate.

Unlock the true potential of your 2003–2007 Dodge 5.9L Cummins with the Powerstroke Products Loaded Cylinder Head with Fire Ring. Engineered for enthusiasts and professionals alike who demand peak performance and unwavering reliability, this isn't just a replacement part—it's an upgrade to a superior level of engine integrity. Understanding the immense pressures generated in high-horsepower diesel builds, this loaded head is meticulously designed to provide a robust foundation for your power goals.
Uncompromising Foundation: Starting with a brand-new casting, you eliminate the uncertainties associated with remanufactured or used components, ensuring a clean and precise starting point for enhanced performance.
Enhanced Valvetrain Stability: Equipped with heavy-duty 103 lb. valve springs and a completely new, fully assembled valvetrain—including valves, seats, seals, and retainers—this head ensures precise valve control even under the most demanding conditions, preventing valve float and maintaining optimal combustion.
The Science of Sealing: The integrated fire-ring design represents a significant advancement in combustion sealing. By creating a phys[...]
- Uncompromising Foundation: Starting with a brand-new casting, you eliminate the uncertainties associated with remanufactured or used components, ensuring a clean and precise starting point for enhanced performance.
- Enhanced Valvetrain Stability: Equipped with heavy-duty 103 lb. valve springs and a completely new, fully assembled valvetrain—including valves, seats, seals, and retainers—this head ensures precise valve control even under the most demanding conditions, preventing valve float and maintaining optimal combustion.
- The Science of Sealing: The integrated fire-ring design represents a significant advancement in combustion sealing. By creating a physical barrier within the cylinder head and precisely matching it with the included fire-ringed head gasket, this system effectively contains the immense cylinder pressures generated by high boost levels. This crucial feature directly combats the common issue of head gasket failure in performance applications, safeguarding your engine and investment.
- Ready for Installation: This comprehensive kit arrives complete with the precisely engineered fire-ringed head gasket and the fire rings themselves, ensuring a seamless and correct installation process right out of the crate.