With a production run from 1994 to 2003, Ford's 7.3 Powerstroke specs weren't all that sexy by today's standards.
But little did Ford engineers know that hidden in the details of the horsepower, torque, and displacement numbers they'd created, dwelled the heart of a legendary beast of a motor.
An engine that some say ... just won't die.
You may not know that Navistar—International—originally built the 7.3L diesel V8 engine—the T444E turbo-diesel. And after that Ford released their first vision of that Navistar 7.3L diesel V8 engine in 1994.
The block and heads on the 7.3 Powerstroke were made of cast iron, making them tougher and longer lasting.
And Ford's 7.3L powerstroke diesel was equipped with two overhead valves for each cylinder.
These and other factors made the engine awesome for its time! And over twenty years later there are still reportedly over two million 7.3 Powerstrokes still on the road today. Impressive!
Ford continued production runs of the 7.3 Powerstroke diesel until mid 2003 when, sadly for us enthusiasts, emissions requirements caused them to cancel production and replace the 7.3 Powerstroke with the "less-than-bulletproof" 6.0L Powerstroke.
But that's another story...
Now, let's revisit what horsepower means - a unit of power equal to 550 foot-pounds per second (745.7 watts). Today, that unit of measure is used to define how powerful an engine is.
And let's continue to make sure we're all speaking the same language. Torque is "a twisting force that tends to cause rotation." Or simply, twisting force.
In your 7.3 Powerstroke's case, actually in any diesel truck, it's the measure of rotational effort applied on a diesel engine's crankshaft by the pistons. And the amount of torque that an engine can exert depends on engine RPMs.
Thank you Wikipedia...
If you have trouble keeping the details of those two straight, just remember that horsepower's for hauling ass. And torque is for towing.
4.11 in (104 mm) bore and 4.18 in (106 mm) stroke
The 7.3 Powerstroke displaces 444 cubic inches—7.3 liters.
The 7.3 engine weighs 920 pounds dry.
And the dimensions of the 7.3 L diesel are 34"Lx32"Wx38"H
I talk about this in-depth in the 7.3 oil change article, but the 7.3's oil change capacity was and remains 15 quarts. This is not to be confused with overall capacity, which I detail in that 7.3 oil change article.
The 7.3 Powerstroke has a HEUI—hydraulically actuated electronic unit injection—fuel injection system. I detail it and the 7.3 HPOP—high pressure oil pump—used to actuate the injectors in these 7.3 HPOP articles:
California emissions—CARB - the California Air Resources Board—required 1996 and 1997 7.3 diesel Powerstrokes to be equipped with split-shot fuel injectors. Non-California 7.3 Fords didn't get split-shot injectors until 1999.
Split-shot injectors reduced knocking and smoothed out the engine, but more importantly to California and CARB, reduced emissions by more fully and completely burning the fuel in the combustion chamber.
The 7.3 firing order is 1-2-7-3-4-5-6-8
Now let's get down to the nitty gritty details...
...just remember that horsepower's for hauling ass. And torque is for towing.
1994 was the first year of Ford's 7.3 Powerstroke production run.
1995 was the year that California required the 7.3 Powerstroke to have split-shot injectors.
For the next two years the 7.3 Powerstroke horsepower and torque specs remained the same.
In 1998, the rest of the trucks caught up to California emissions and all of Ford's 7.3 Powerstrokes came equipped with split-shot injectors.
1999 is when things got interesting. Not only did Ford redesign the body of the F250 and F350 Superduty pickups, giving them a more rounded and sleeker look, but it added larger fuel injectors and an intercooler. And this boosted the 7.3's performance specs.
The truck produced 10 more horsepower and 50 more lb.-ft. of torque.
The 2000 7.3 Powerstroke specs stayed pretty much the same as the 1999 production year.
In 2001, Ford engineers tweaked the engine calibrations and eked out a little more horsepower and torque for both the auto transmission and the manual, stick-shift, 7.3 Powerstroke.
As far as horsepower and torque goes, 2002 specs were a repeat of 2001.
2003 is a sad year for us 7.3 Powerstroke enthusiasts as it was the last production year. Ford succumbed to government regulations and new emissions standards and created the 6.0 Powerstroke to "replace" it. Though that engine failed to live up to the 7.3's reputation for reliability.
So, there they are—Ford's not jaw-dropping by today's standards, but still very impressive for its day—7.3 Powerstroke diesel turbo specs everyone's been raving to you about.
And if you want to find out how to push those numbers higher, check out our article on increasing your 7.3 Powerstroke's stock MPG and HP specs.
For me, I'm more interested in that legendary engine longevity number I've heard. A million miles? My 2002 F250 7.3 Powerstroke's not there yet, but I keep religiously changing my 7.3 oil ... and crossing my fingers...
7.3 Powerstroke OIL CHANGE and CAPACITY Secrets
ADRENALINE HPOP 7.3 Powerstroke Review