1994.5-2003 7.3L Power Stroke
The original Power Stroke, the 7.3L, brought HEUI injection and standard turbocharging to Ford’s diesel option.
Engine Name: 7.3L Power Stroke (Ford), T444E (Navistar)
Production Plant: Melrose Park, Illinois (1994-2002)
Configuration: V-8
Bore: 4.11-inch
Stroke: 4.18-inch
Displacement: 444 ci (7.3L)
Compression Ratio: 17.5:1
Block: Cast-iron (gray iron), parent bore
Heads: Cast-iron with six (12mm diameter) head bolts per cylinder, high-pressure oil galleries, reusable UVCH valve cover gaskets, and nodular iron exhaust manifolds
Crankshaft: Forged-steel with hardened journals and fillets on main and rod journals, gerotor oil pump drive
Connecting Rods: Forged-steel (start of production to engine serial #1425746, and #1440713-1498318), powdered-metal (engine serial #1425747-1440712, and 1498319-end of production)
Pistons: Cast-aluminum with Ni-Resist upper piston ring insert, plasma-treated top piston ring (deeper intermediate piston ring groove and ring added in 1999)
Valvetrain: Overhead valve (OHV), 2 valves per cylinder with valve rotators, single cam-in-block design with hydraulic lifters, stamped-steel intake and exhaust rockers
Injection System: Hydraulically Actuated Electronic Controlled Unit Injector (HEUI), direct injection
Injection Pump: High-pressure oil pump, 7-piston axial piston style, 3,000-3,200 psi peak pressure, gear-driven via camshaft but not timed with engine
Injectors: HEUI, solenoid injectors with 7-hole nozzles
Aspiration: Turbocharged (all years) and intercooled (’99-‘03)
Intake: 2-inch inlet stamped-steel plenums (’94.5-‘99), 3-inch inlet stamped-steel plenums (’99.5-‘03)
Turbo: Non-wastegated Garrett TP38 (’94.5-‘97), wastegated Garrett TP38 (‘99), wastegated Garrett GTP38 (’99.5-‘03)
Peak Boost: 17-22 psi
Intercooler: Air to air (’99-‘03)
Horsepower: 210 hp at 3,000 rpm (’94.5-‘95), 215 hp at 3,000 rpm (‘96), 225 hp at 3,000 rpm (‘97), 235 hp at 2,700 rpm (’99-‘00), 250 hp at 2,600 rpm (’01-’03, auto), 275 hp at 2,800 rpm (’01-’03, manual)
Torque: 425 lb-ft at 2,000 rpm (’94.5-‘95), 450 lb-ft at 2,000 rpm (’96-‘97), 500 lb-ft at 1,600 rpm (’99-‘00), 505 lb-ft at 1,600 rpm (’01-’03, auto), 525 lb-ft at 1,600 rpm (’01-’03, manual)
Available Transmissions: E4OD four-speed automatic (’94.5-’97), 4R100 four-speed automatic (’99-‘03), ZF-5 five-speed manual (’94.5-‘97), ZF-6 six-speed manual (’99-‘03)
