New Ford Powerstroke 6.0 Turbo Diesel Cylinder Head – 18mm | No Core Required

New Ford Powerstroke 6.0L Turbo Diesel 18mm Casting Cylinder Head

New Heavy-Duty Castings for 18mm Dowel 6.0L Powerstroke Engines

Restore your engine’s mechanical integrity with this all-new 18mm 6.0L Powerstroke cylinder head, specifically engineered for 2003–early 2006 Ford Super Duty and Excursion applications. This fresh, high-density casting features reinforced internal cooling passages and an upgraded deck thickness to eliminate the thermal stress cracking and ‘bowing’ common in original thin-wall factory units under high-boost conditions. Although the gasket surface is pre-milled, every unit undergoes an in-house precision verification to ensure the Surface Roughness (Ra) meets the strict requirements for high-clamping Multi-Layer Steel (MLS) gaskets. We perform final guide sizing and multi-angle valve seat cutting on our Rottler equipment to ensure perfect valvetrain geometry and a 100% airtight seal. Pressure tested to 60 PSI and built for ‘bulletproof’ reliability, this 18mm-dowel head provides a professional-grade solution for long-term cooling system and combustion integrity.

🛠️ In-House Machining Process

• Debris-Free Preparation: Every new casting is chemically cleaned and blown out to remove all residual machining oils, metal shavings, and manufacturing debris. This ensures your oiling system remains uncontaminated from the first start-up.

• In-House Precision Machining: Unlike “shelf-stock” heads, we perform all final machine work in-house. This includes final guide sizing and precision valve seat cutting to ensure perfect geometry and clearances before the head reaches the assembly bench.

• Pressure & Integrity Testing: To go beyond the factory standard, we pressure-test every head to 60 PSI. This verifies that the casting is free of porosity leaks or internal defects that could compromise the cooling or oiling systems.

• Dimensional Inspection: Our technicians perform a multi-point inspection of the gasket-sealing surface and bore alignment. This ensures the head is perfectly flat and meets tight OEM tolerances for a flawless fit.

• Professional Assembly & Setup: Valvetrain components are installed and verified in a clean-room environment. We check spring heights and seal seating to ensure the assembly is balanced and ready for high-performance use.

• Vacuum-Seal Verification: Every intake and exhaust port is Vacuum Tested. This guarantees a 100% airtight seal between the valves and seats, ensuring maximum compression and peak performance right out of the box.

📊 Technical Specifications

• Engine Size: 6.0L (363/366 CID)
• Material: Heavy-Duty Cast Iron
• Dowel Size: 18mm
• Condition: Brand New
• Each Cylinder Head Includes: Valves and Springs Installed

🚛 Fitment Data

Common Applications:

• Ford Excursion: 2003–2005 Ford Excursion (6.0L Diesel)
• Ford E350 Van: 2004 Ford E350 Van (6.0L Diesel)
• Ford F250SD Pickup: 2003–2005 Ford F250SD Pickup (6.0L Diesel)
• Ford F350SD Pickup: 2003–2005 Ford F350SD Pickup (6.0L Diesel)
• Ford F450SD Pickup: 2003 Ford F450SD Pickup (6.0L Diesel)
• Ford F550SD Pickup: 2003 Ford F550SD Pickup (6.0L Diesel)