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The '01 Power Stroke Diesel (PSD) was assembled in the Indianapolis engine plant run by International Truck and Engine Corporation. The 444 cubic inch (7.3L) PSD is very similar to the International T444E engine used in medium-duty International trucks and school buses. www.internationaldelivers.com
Ford engineers and International engineers worked together to design the 7.3L PSD engines. They started with the International engine, but then tweaked it to make it perform better for pickups instead of the bigger trucks International uses their version in.
Ford engineers were in charge of the software that goes in the computer of the PSD, so the "calibration" of the Ford version of the 7.3L engine is quite different than the calibration of the same basic engine used in International trucks. (The "computer" in a PSD is called the program control module, or PCM.)
International Harvester as the company name went away about 30 years ago. They were replaced by Navistar for trucks and Case International for Farmall tractors and International construction and "harvester" equipment. Then a few years ago Navistar changed the name of their truck and engine manufacturing and sales divisions from Navistar to International Truck and Engine.
So your 6.9L was made by Navistar. My '99.5 7.3L was made by Navistar. The 2001 was around the time of the name change, so it might be either a Navistar or International engine. Doesn't matter - all that changed was the name on the door of the plant. All the current 6.0L PSDs are International engines, and they might be assembled at a new International engine plant in Huntsville, AL or maybe in the old foundry/engine plant in Indianapolis.
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And they all lived happily ever after. Smokey, I need you to read me this as a bedtime story. /ubbthreads/images/graemlins/biggrin.gif /ubbthreads/images/graemlins/biggrin.gif.
That is some great information Smokey /ubbthreads/images/graemlins/smokin.gif,