6.7L Power Stroke

Ford's new 6.7L Power Stroke, codenamed the Scorpion, is Ford Motor Company's first in house designed diesel platform for the F-series trucks. Ford has announced that it needed to produce its own diesel engine to stay profitable and competitive in today's booming diesel truck market, so they have developed the latest Power Stroke without the help of long time diesel partner, International (who has been building diesel engines for Ford since 1982). It is also suggested that the lawsuits between Ford & Navistar (International) had a negative impact on their relationship. Nonetheless, International will still be producing diesel engines for Ford's medium duty truck line.

6.7L Power Stroke Specifications:

Displacement:	409 cubic inches, 6.7 liters
Configuration:	V-8
Firing Order:	1-3-7-2-6-5-4-8
Block/head Material:	- CGI (compacted graphite iron) engine block, aluminum cylinder heads - 6 head bolts per cylinder - 6 bolts per main bearing cap
Compression Ratio:	16.1:1
Bore:	3.90 inches
Stroke:	4.25 inches
Injection:	- Direct injection, high pressure common rail - 19mm Piezo actuated injectors w/ 8 hole nozzles
Aspiration:	- DualBoost variable geometry wastegated turbocharger (single sequential turbocharger). - Air-to-water charge air cooler (intercooler)..
Valvetrain:	OHV, 4 valves per cylinder, 4 rocker arms per cylinder
Oil Capacity:	13 quarts
Oil Requirements:	- CJ-4 or CJ-4/sm required to ensure emission systems compatibility - Preferred 10W-30 - 5W-40 or 15W-40 recommended for severe duty or biodiesel applications (Viscocity recommendations vary by operating temperatures range, see owner's manual)
Weight:	approx. 1,100 lbs (990 lbs dry)
Horsepower:	Intro: 390 HP @ 2,800 RPM Current*: 400 HP @ 2,800 RPM
Torque	Intro: 735 lb-ft @ 1,600 RPM Current*: 800 lb-ft @ 1,600 RPM

* Ford Motor Company announced on August 3rd, 2010, new power ratings for the 6.7L Power Stroke. Owners of the 390 HP model can get a free dealer installed upgrade to acheive the new 400 HP power rating.

6.7L Power Stroke Information:

• The 6.7L Power Stroke features an extremely flat torque curve. Peak torque or 735 lb-ft is maintained from 1,600 RPM to 2,800 RPM.
• Single Sequential turbocharger featuring variable geometry turbine housing. View more information: Single Sequential Turbocharger.
• Reversed intake & exhaust flow. Intake valves located on the outside of the cylinder head, while exhaust exits into the engine valley where the turbocharger is mounted. Increases thermal efficiency of the turbocharger.
• "Instant Start" glow plugs which are said to provide quicker starts in even the coldest of weather.
• Compacted graphite iron block for reduced weight (160 lbs lighter than the current 6.4L Power Stroke).
• Features piston cooling jets for lower piston temperatures.
• B20 biodiesel compatible.
• 6.7L Power Stroke receives 18% increase in fuel mileage.

 

6.7L Power Stroke Emissions Equipment:

• Exhaust gas recirculation (EGR)
• Diesel oxidation catalyst (DOC). The DOC is a ceramic catalytic converter designed to oxidize hydrocarbons in the exhaust stream.
• Selective catalyst reduction (SCR). The SCR is where diesel exhaust fluid (DEF; 32.5% urea) is injected & mixed into the exhaust stream. Diesel exhaust fluid is used to convert nitrous oxides into water & nitrogen. A DEF tank will need to be filled at every oil change interval.
• Diesel particulate filter (DPF). A DPF captures diesel particulate matter (soot) and uses active regeneration technology to heat the exhaust system periodically, completely burning soot build up & cleaning the filter.