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1994-1997 Powerstroke 7.3

The 1992-1997 Ford F-Series trucks, also known as OBS for "Old Body Style," are highly sought after by truck enthusiasts for their simplicity, reliability, and classic styling. However, one particular option that raises the overall desirability and value of these trucks is the 7.3L Powerstroke diesel engine, introduced during the 1994 model year.

This engine was a game-changer in the diesel world, manufactured by International Navistar and introduced to Ford Heavy Duty trucks. It provided significantly better performance specifications than its 6.9L IDI and 7.3L predecessors. Despite not being as capable as modern diesel engines, the 7.3L Powerstroke's simplicity played a major role in its great success. These engines were built to be big brutes, capable of working for hundreds of thousands of miles without problems.

In fact, the 7.3L Powerstroke engine was actually used in medium-duty trucks under a different name, the T444E. Though it had slight differences, most internal components remained the same, giving it an advantage as it was "overbuilt" for a consumer truck. The 1994 Ford Superduty with the 7.3L Diesel engine produced 215 horsepower and 425 lb-ft of torque.

One major difference between the 7.3L Powerstroke engine and its 7.3L IDI predecessor is the use of direct fuel injection. IDI engines refer to engines that utilize indirect injection. In those engines, fuel is injected into a pre-combustion or swirl chamber, where fuel mixes with air before it enters the actual combustion chamber. The 7.3 Powerstroke's direct injection system injects fuel directly into the combustion chamber, resulting in more power and cleaner emissions.

Power levels in the 7.3L Powerstroke started out at 215 hp and 425 lb-ft of torque for the 1994.5-1995 model years and were bumped up to 225 hp and 450 lb-ft for 1996-1997.

All in all, the 7.3L Powerstroke engine is still one of the most sought-after Ford powerplants ever produced. Its reliability, simplicity, and overall toughness make it a favorite among truck enthusiasts, and it remains a top choice for those looking to buy or restore a classic Ford OBS truck.