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Comprehensive 6.4L Powerstroke Specifications

Guide to 6.4L Powerstroke Specs

2008-2010 Ford SuperDuty 6.4L Powerstroke Diesel Specs

The 6.4L Powerstroke was introduced in 2008 to Ford’s Superduty lineup. A new body style accompanied the motor change, as well as significant interior improvements that made these trucks more luxurious and more comfortable. After the 6.0L Powerstroke stint, Ford Diesel owners were ready for something new and hopefully, something more reliable. Would the 6.4L Powerstroke be any better? We’ll give you everything you need to know about Ford’s 2008-2010 Superduty Diesel offering. Below you’ll find detailed 6.4L Powerstroke specifications, features, and tow capacity.

The 6.4L Powerstroke was very impressive for the time, offering 350 horsepower and 650 lb/ft of torque and a max tow capacity of 24,600 lbs (2010 F-450). It’s partnered with a 5-speed automatic TorqShift transmission or an available 6-speed manual transmission. The 6.4L Powerstroke also featured a twin turbocharger set-up, a new DPF emissions system, and other unique specs. For a comprehensive overview of 6.4 Powerstroke specs, just take a look at the chart below.

6.4L Powerstroke Specifications
One of our Gallery Submissions – 6.4L Powerstroke

6.4L Powerstroke Specifications

Engine Design:V8
Transmissions:5-Speed Automatic Torqshift transmission
6-Speed Manual Transmission
Front Suspension:4×2 F-250 & F-350: Twin-I-Beam
4×4 F-250 & F-350: solid twin-coil monobeam axle
Displacement:6.4 Liters or 390 cubic inches
Engine Weight:1,130 lbs /w oil
Bore:3.87 inches or 98.2 mm
Stroke:4.134 inches or 105 mm
Cylinder Head:Cast Iron /w 4 M16 Head Bolts per cylinder
Engine Block:Cast Iron
Firing Order:
Compression Ratio:17.5:1
Fuel Injection:High-Pressure Common-Rail, Bosch CP4
TurboCharger:Series Sequential Twin Turbochargers;
charged air cooler
Valvetrain:OHV 32 Valve
Emissions:Exhaust Gas Recirculation System
Diesel Particulate Filter
Diesel Oxidation Catalyst
Engine Oil Capacity:15 quarts /w filter
DEF Tank Size:No DEF System used
Battery:Dual 12-volt 750-CCA/78-amp
Fuel:Ultra-low Sulfur Diesel
Fuel Tank Size:Short box: 30.5 Gallons
Long Box: 38 Gallons
Governed Speed:3,700 rpm
Horsepower (Varies):350 horsepower
Torque (Varies):650 lb/ft of torque

Is the 6.4L Powerstroke better Than the 6.0?

Would Ford’s 6.4L Powerstroke become any better than the 6.0L Powerstroke? Not by much. While I do believe the 6.4L Powerstroke engine is a beefier, more reliable engine, the factory emissions devices found on these trucks greatly decrease their reliability and fuel economy. Emissions devices aren’t the only issue either. Other common problems include cracked radiators and cracking exhaust up-pipes. Unfortunately, servicing these trucks is also very expensive. They were designed to be worked on with the cab off. This results in very high labor rates.

Unfortunately, the 6.4L Powerstroke proved to be unreliable, and Ford abandoned the 6.4L engine and their partnership with International in 2011. Starting in 2011, Ford released their own 6.7L Powerstroke engine, built in-house. It ended up being the engine Ford had hoped for. A much-improved 6.7L Powerstroke engine is still used as I’m writing this, in 2020.

The First Twin-Turbocharger Set-up From the Factory

While the reliability of a 6.4L is questionable, these trucks feature some exciting upgrades that make attaining big power very easy. What is the most notable 6.4l Powerstroke feature? The twin sequential turbo set-up. This turbocharger set-up reduces turbo lag and improves performance. Even just the addition of a tuner or programmer can push the 6.4L Powerstroke to 550-600 horsepower. The 6.4 engine features a significantly stronger cylinder head design than the previous 6.0 too. Want suggestions on how to make your 6.4L Powerstroke more capable? Check out our favorite 6.4L Powerstroke performance upgrades.

New Emissions System: The DPF

While the 6.4L Powerstroke offered many improvements over the 6.0, many new problems arose. Many of these issues are attributed to new emissions systems. The 6.4L Powerstroke’s emission system features a DPF, or diesel particulate system. Unlike modern DPFs that use direct fuel injection into the exhaust stream, the 6.4L Powerstroke’s DPF system allows fuel to be released during the exhaust stroke. Diesel is then routed through the exhaust manifold and other crucial components until it reaches the exhaust stream. Needless to say, this is a very poorly designed system. Fuel dilution in engine oil is commonplace with the 6.4L Powerstroke. It can lead to major problems like cylinder washing. This is just one of the 6.4L Powerstroke problems.

EGR systems are used to greatly reduce nitrogen oxide release from the tailpipe. While they help the environment, they’re often a headache for diesel owners. Remember how problematic the 6.0L Powerstroke’s EGR system was? Well, the 6.4L Powerstroke has more than just the standard EGR Valve and EGR Cooler. Two EGR Coolers are used on the 6.4L Powerstroke. That’s right, two!

Lastly, the 6.4L Powerstroke is equipped with a diesel oxidation catalyst. Most diesels feature this component, as it is the diesel version of a catalytic converter. In the DOC an oxidation reaction occurs that turns Hydrocarbons and carbon monoxide into water vapor and carbon dioxide. Find out more about these emissions systems on our 6.4L Powerstroke Emissions Page.

Tow Capacity

6.4L Tow capacity varies according to model year and model specifications. Max conventional and fifth-wheel tow capacity are listed in the chart below. Before you tow, make sure you check your owners manual or contact Ford directly to determine your exact capacities. It’s always good to be cautious and keep any loads below your truck’s max tow capacity or payload.

6.4L Powerstroke Max Towing Specifications

5th-Wheel Tow Capacity:16,500 lbs18,800 lbs24,600 lbs
Conventional Tow Capacity:12,500 lbs15,000 lbs16,000 lbs
GCWR:23,000 lbs26,000 lbs33,000 lbs
GVWR:10,000 lbs13,000 lbs14,500 lbs
Payload:3220 lbs5730 lbs6180 lbs

Learn More About the 6.4L Powerstroke

Want to learn more than just 6.4L Powerstroke specifications? Visit some of our other resource pages! Click on one of the bulleted links below.

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Founder of Diesel Resource and a complete diesel head. Has a little bit of problem buying too many trucks. Learn more about him by checking out his truck.