Changes to the 7.3L IDI engine in 1994 gave birth to the 7.3 liter Power Stroke. By 1999, International had built 1 million 7.3L Power Strokes, and the 2 millionth 7.3 was built in 2002. Unfortunately, the 7.3 failed to meet stricter emission requirements and was therefore replaced early in 2003 by the 6.0L Power Stroke. The 7.3 is largely responsible for making the Power Stroke name legendary, as well as fueling the performance race between the big three (Ford, Dodge, & Chevrolet/GMC).
1994.5 - 2003
444 cubic inches, 7.3 liters
OHV, 2 valves per cylinder
Direct injection, HEUI (hydraulic electronic unit injection)