7.3 Powerstroke Tech Articles

The 7.3 Powerstroke engine was introduced in 1994 in Ford F250 and F350 pickups.  In 1994 you could order either an IDI or Powerstroke version 7.3 engine.  The easiest way to spot the difference is by looking for the injection lines.  Only the IDI versions had visible injection lines running to each injector.

The 1994-1997 Ford 7.3 Powerstroke engines used a high pressure oil system to regulate fuel supply.  They had a mechanical fuel supply pump in the valley under the turbo.  These engines came from the factory rated at 210 horsepower and 425 ft/lbs of torque.

The 1999-2003 Ford 7.3 Powerstroke that came in the new Superduty pickups received larger fuel injectors and a wastegated turbocharger.  Horsepower was increased to 275 and torque to 525 ft/lbs.

 

The Ford 7.3 Powerstroke is a great engine with some proper modifications to address trouble areas.  If you have any questions about performance modifications, troubleshooting, or anything else related to the 7.3 Powerstroke, please feel free to give us a call at 1-877-367-9351.

 

7.3 Powerstroke Specs

Years Produced: 1994-2003 Model Years

Displacement: 7.3 Liters (444 Cubic Inches)

Block/Head Material: Cast Iron Block, Cast Iron Cylinder Heads, Six TTY Head Bolts Per Cylinder

Compression Ratio: 17.5:1

Firing Order: 1-2-7-3-4-5-6-8

Bore: 4.11 Inches (104.4MM)

Stroke: 4.18 Inches (106.2MM)

Turbocharger: Single Wastegated Garrett Turbocharger (Intercooler Added To 1999+ Models)

 Injection: Direct Injection HEUI Injectors

Valvetrain: Single Gear Driven Camshaft, 2 Valves Per Cylinder

 Oil Capacity: 15 Quarts With Filter

Engine Weight: 920LBS Dry Weight

Emissions Equipment: Catalytic Converter

Peak Horsepower: 210-275HP @ 2800 RPM

Peak Torque: 425-525FTLBS @ 1600 RPM

 Engine Dimensions: 34"L-32"W-38"H

 

7.3 Powerstroke Tech and Troubleshooting Articles:

Ford 7.3 Powerstroke General Information

Ford 7.3 Powerstroke Diagnostic Trouble Code List DTC

7.3 Powerstroke Engine Specs and Power Levels

How to Install a 99-03 7.3 Powerstroke Intercooler

How to Install a 95-97 7.3 Powerstroke Radiator