This complete cylinder head is assembled using a combination of new OEM and high-quality aftermarket components, guaranteeing reliable operation and longevity. This listing is for 1 cylinder head.
- New Casting: Built from a brand-new, non-remanufactured casting.
- New Valves: Equipped with new, high-quality intake and exhaust valves that are inspected for proper seating and clearance.
- New Valve Springs and Retainers: Utilizes brand-new valve springs matched to the engine's requirements and durable retainers and locks for secure operation, even at higher RPMs.
- New Injector Cups: Pre-installed new injector cups for proper fuel sealing.
- O-Rings: For enhanced durability, o-rings are cut and installed into the deck surface to dramatically improve sealing under high cylinder pressures.
Key Features and Fixes
This head features key performance and durability upgrades, backed by an intense inspection protocol to guarantee every specification is met.
- Pressure Testing: After machining, every cylinder head is pressure tested at 40 PSI to confirm zero leaks and ensure casting integrity.
- Blow-Proof Plugs: Threaded, blow-proof plugs are installed in the top of the head for increased security and leak prevention.
- Final Quality Control: The head undergoes a final, extensive cleaning and quality control inspection. A detailed sign-off sheet is generated, measuring and recording critical specifications using a profilometer, including:
- Valve Recessions
- Stem Heights
- Installed Spring Heights
- Spring Pressures
- Keeper and Lock Positions
- RA Recording
This rigorous process ensures you receive a head that is significantly improved over the original and ready for years of demanding diesel operation.
Machining Process:
Choate Engineering Performance has incorporated critical modifications and features to address common failure points of the factory 6.0L Powerstroke cylinder heads, drastically improving reliability.
- Optimal Sealing Surface: The deck is resurfaced to meet or exceed OEM specifications for Roughness Average (Ra), maximizing the sealing surface performance for the head gasket.
- Valve Train Geometry Alteration: We custom blueprint the head to alter valve height and valve recession, achieving maximum reliability.
- Lifter Longevity Fix: Valve stem heights are precisely altered to remove preload on the hydraulic lifter. This crucial modification decreases wear and significantly extends the life of the lifters.
- Optimized Flow: Valve seats are cut with a three-angle profile to optimize airflow and ensure proper sealing.
- Valve Prep: Valves are reground and their margins are meticulously inspected to guarantee proper sealing against the new seats.
- New Components: New casting, valve stem seals, valve seats, and valve guides are installed.
- O-Rings: For enhanced durability, o-rings are cut and installed into the deck surface to dramatically improve sealing under high cylinder pressures.
Vehicles
- 2003-2005 Ford F-250 Super Duty Lariat
- 2003-2005 Ford F-250 Super Duty XL
- 2003-2005 Ford F-250 Super Duty XLT
- 2003-2005 Ford F-350 Super Duty King Ranch
- 2003-2005 Ford F-350 Super Duty Lariat
- 2003-2005 Ford F-350 Super Duty XL
- 2003-2005 Ford F-350 Super Duty XLT
- 2004-2005 Ford F-250 Super Duty Harley-Davidson Edition
- 2004-2005 Ford F-250 Super Duty King Ranch
- 2004-2005 Ford F-350 Super Duty Harley-Davidson Edition
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.