13 Things About the 7.3 Power Stroke Engine You May Not Have Known

13 Things About the 7.3 Power Stroke Engine You May Not Have Known
  • Due to its popularity, nearly 2 million 7.3 Power Stoke engines were produced from International’s Indianapolis plant.
  • It has a 17.5:1 compression ratio.
  • The 7.3 Liter Power Stroke has a dry weight of approximately 920 lb (420 kg).
  • From the factory, the 7.3 Power Stroke engines produced up to 250 hp (190 kW) and 505 lb·ft (685 N·m) of torque in automatic-transmission trucks during the last years of production, and 275 hp (205 kW) and 525 lb·ft (712 N·m) of torque in manual-transmission trucks.
  • In 1999, an air to air intercooler was added to cool the charged air from the turbo for increased air density. 
  • The 7.3 Power Stoke utilizes a cast iron block and cast iron cylinder heads.
  • The Power Stroke is an electronically controlled, direct injection engine with a 4.11 in (104 mm) bore and 4.18 in (106 mm) stroke creating a displacement of 444 cu in (7.3 L). 
  • It utilizes a single turbocharger with a turbine housing size of 1.15 A/R.
  • The 7.3 Power Stroke is based on International’s T444E engine(the name “Power Stroke” is unique to Ford vehicles)
  • Production of the 7.3 Liter Power Stroke engine ceased in 2003 in order to meet emission regulations.
  • Fuel for the 7.3 Power Stroke engine is provided by  Direct injection, HEUI (hydraulic electronic unit injection) Injectors.
  • The serial number of a 7.3 Liter Power Stroke engine is located on the rear oil cooler pad (driver’s side rear of engine, the “pad” is where the oil filter assembly mounts to the engine block). 
  • The 7.3 Power Stroke engine firing order is 1 2 7 3 4 5 6 8 . 

Cylinder arrangement: