Cylinder Heads

Premium 2008-2010 6.4 Powerstroke Cylinder Heads & Valvetrain Components

The cylinder heads on the 2008-2010 Ford 6.4L Powerstroke are tasked with sealing immense cylinder pressure and directing high-velocity airflow under heavy boost from the compound turbo system. Unfortunately, the factory cast-iron cylinder heads are a known weak link on this platform. Due to severe thermal stress concentration points, extreme exhaust gas temperatures (EGTs), and thin casting walls near the valve seats, stock 6.4L heads are notorious for developing hairline micro-cracks. These cracks often manifest as mysterious coolant loss, pressurized cooling systems, and white exhaust smoke. Furthermore, continuous heavy towing or aggressive performance tuning can warp the deck surface, destroying the fire ring seal and blowing head gaskets.

When refreshing the top end of your Super Duty, installing a set of precision-machined, heavy-duty replacement cylinder heads is the absolute best way to ensure long-term structural integrity and prevent a repeat teardown.

At Full Force Diesel, we provide professional-grade, upgraded cylinder heads engineered to eliminate factory weaknesses and handle the demands of the 6.4L common-rail platform:

• O-Ringed Cylinder Heads: The ultimate defense against blown head gaskets. These heads feature a precision-machined groove around each combustion chamber where a heavy-duty wire o-ring is installed. When clamped down, the wire bites directly into the multi-layered steel (MLS) gasket, creating a mechanical lock that keeps the fire ring from blowing out—even under extreme boost levels.

• New Loaded Castings: Skip the hassle of machine shop wait times. We stock completely new cylinder head castings loaded with premium valves, heavy-duty valve springs, hardened retainers, and fresh valve stem seals, ensuring a direct bolt-on installation right out of the box.

• Upgraded Valvetrain Components: Reinforce your top end with performance valve springs designed to prevent high-RPM valve float, along with heavy-duty chrome-moly pushrods that won't flex under the increased cylinder pressures of modified builds.

Whether you are rebuilding a high-mileage work truck to restore original factory reliability or anchoring a high-horsepower street build, investing in premium cylinder heads gives your 6.4L the structural sealing power it requires. Browse our full selection of 2008-2010 6.4 Powerstroke cylinder heads below to bulletproof your top end.