13 Things About the 7.3 Power Stroke Engine You May Not Know - Diesel …
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WebDec 1, 2020 · The 7.3 powerstroke is actually a Navistar T444E which is made by Navistar International, formerly International Harvester. In addition to Ford Super Duty trucks, the 7.3 is used in school buses, transit buses, and other large commercial vehicles. 2. It has a 17.5:1 compression ratio.
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