How many valves does a 6.7 Power Stroke have?
The 6.7 Power Stroke has 32 valves in total, arranged as four valves per cylinder across eight cylinders in the V8 diesel.
Powering Ford’s heavy-duty pickups since its debut in 2011, the 6.7L Power Stroke is a high-torque, low-emissions diesel that relies on a multi-valve setup to optimize airflow and combustion. The valve count is a fixed specification of the engine’s architecture and does not vary across model years in typical configurations.
Valve count and engine design
Key facts about the valve arrangement are summarized below.
- 8-cylinder V8 configuration
- 4 valves per cylinder (2 intake, 2 exhaust)
- Total of 32 valves across the engine
- Dual overhead camshaft (DOHC) design with camshafts on both banks
In short, the 6.7L Power Stroke uses a 32-valve DOHC arrangement, a common design choice for modern diesel V8s to optimize power, torque, and efficiency.
Why the valve count matters
Valve count affects airflow, combustion efficiency, and the ability to meet emissions targets. A four-valve-per-cylinder design generally allows higher air intake and more complete exhaust scavenging, contributing to better torque and drivability in heavy-duty applications.
Summary
The 6.7 Power Stroke has 32 valves in total—eight cylinders with four valves per cylinder—facilitated by a DOHC configuration across both banks. This arrangement has been consistent since the engine’s introduction and remains standard in current production.
How many valves does a 6.7 powerstroke have?
Four valves
Four valves, four rockers, and four pushrods per cylinder. Air-to-water intercooler. Selective catalytic reduction. Bosch's high-pressure common rail system with piezoelectric injectors.
What is the biggest problem with 6.7 power stroke?
The biggest problems with the 6.7 Powerstroke include fuel system issues, such as CP4 injection pump failure (especially on pre-2020 models), and emissions system problems like clogged EGR coolers and faulty EGT or NOx sensors. Other common concerns are leaks, often from the upper oil pan or the cold-side charge pipe, and issues with the high-pressure fuel pump.
This video explains some of the common problems with the 6.7 Powerstroke, including injection pump failure: 48s8020 AutomotiveYouTube · Dec 27, 2022
Fuel system
- Injection pump failure: The Bosch CP4 injection pump on pre-2020 models is a major issue. It can fail due to metal-on-metal contact, sending metal shavings throughout the fuel system and causing extensive damage to injectors, lines, and regulators.
- Fuel filter housing: The secondary fuel filter housing can leak, particularly the plastic fuel filter housing fitting, which can also be a fire hazard if it breaks.
Emissions system
- EGR cooler: The EGR cooler is prone to clogging from carbon deposits, which can lead to a loss of power and may eventually require replacement.
- EGT and NOx sensors: These sensors are known to fail, which can trigger a check engine light or even cause the vehicle to shut down. The middle EGT sensors are the most common failure points.
You can watch this video to learn more about common EGR cooler problems: 58sPower Stroke MaintenanceYouTube · May 12, 2023
Leaks and other issues
- Oil leaks: A significant number of leaks are reported, especially from the upper oil pan and front cover, often caused by a clogged crankcase filter that builds excessive pressure.
- Charge pipe failure: The cold-side charge pipe is a common failure point that can leak, leading to a loss of boost pressure.
- Exhaust manifold: The exhaust manifold is infamous for cracking, which can cause exhaust leaks, a ticking noise, and a loss of performance.
- Turbocharger issues: Early models had issues with the turbocharger's ceramic ball bearings, though updates were made in later years.
This video shows examples of Ford 6.7 Powerstroke problems, including rad leaks and EGR issues: 1mJT2JZYouTube · Mar 8, 2024
What is the 6.7 4 valve Powerstroke?
The 6.7L 4 Valve OHV Power Stroke® V8 Turbo Diesel engine is a testament to Ford's engineering excellence, delivering robust power, efficiency, and advanced technology. This engine powers the 2024 Ford Super Duty trucks, ensuring unparalleled performance and reliability for demanding tasks.
How many valves is a 6.7 l Cummins?
Dodge 6.7L Cummins 07.5-12, CR 24-Valve.
