Ford 7.3L PFI Gas V-8

Ford 7.3L Gas V-8 Engine Specs & Information

The 7.3L gas V-8 is Ford's replacement for the 6.8L V-10 and 6.2L V-8 engines. Although the Triton V-10 was retired from Super Duty pickups following the 2010 model year, Ford continued to utilize the engine in select commercial applications through the 2019 model year. And while the 6.2L V-8 remains available in F-250/F-350 trucks, the 7.3L is likely to phase it out in the near future. Internally, the engine was appropriately codenamed "Godzilla", likely due to its large displacement; it is the largest gasoline engine Ford has produced since the 460 CID (7.5L) V-8 was retired from the F-Series in the late 1990's.

The 7.3L is offered in 3 power variations; the pickup version is rated at a peak 430 horsepower (475 lb-ft of torque) while the chassis cab features a 350 horsepower (468 lb-ft of torque) version. A specially detuned variant designed for maximizing fuel economy is available in the stripped chassis E-Series, which is rated at 300 horsepower and 425 lb-ft of torque. In F-250, F-350, F-450, and F-550 pickups and chassis cabs the 7.3L V-8 is coupled to the TorqShift 10 speed automatic transmission, while F-650, F-750, and stripped chassis vehicles will continue to use a 6 speed automatic transmission.

 

Ford 7.3L PFI V-8 Engine Specs

Engine:

7.3L PFI V-8

Manufacturer:

Ford Motor Company

Applications/Production Years:

2020+ Ford F-250/F-350 Super Duty
2020+ Ford F-250/F-350/F-450/F-550 chassis cab
2020+ Ford F-650/F-750 medium duty trucks
2020+ E series stripped chassis
2020+ F53 & F59 stripped chassis

Displacement:

445.33 CID (445 CID nominal), 7.29 liters (7.3 liters nominal)

Configuration:

V-8

Bore:

4.22 in (107.2 mm)

Stroke:

3.98 in (101 mm)

Bore/Stroke Ratio:

1.06 (slightly oversquare)

Compression Ratio:

10.5 : 1

Firing Order:

1 - 5 - 4 - 8 - 6 - 3 - 7 - 2

Engine Block Material:

Cast iron

Cylinder Head Material:

Aluminum alloy

Exhaust Manifold Material:

Stainless steel

Injection System:

High pressure sequential multi-port fuel injection

Aspiration:

Naturally aspirated

Reciprocating Assembly:

Forged steel crankshaft, 5 main bearings

Valvetrain:

2 valves per cylinder (16 valve), OHV, standard cam-in-block pushrod V-8, variable valve timing (VVT), hydraulic roller lifters

Engine Oil Capacity:

8.0 quarts w/ filter

Engine Oil Spec:

Ambient temp > -20° F

SAE 5W-30 synthetic blend or full synthetic

Ambient temp < -20° F

SAE 0W-30 full synthetic

Fuel:

87 octane unleaded gasoline (E85 compatible)

Horsepower:

Super Duty pickup

430 hp @ 5,500 RPM

Super Duty chassis cab
F53/F59 stripped chassis

350 hp @ 3,900 RPM

E Series stripped chassis

300 @ 3,750 RPM

Torque:

Super Duty pickup

475 lb-ft @ 4,000 RPM

Super Duty chassis cab
F53/F59 stripped chassis

468 lb-ft @ 3,900 RPM

E Series stripped chassis

425 @ 3,250 RPM

 

7.3L gas V-8 infographic

7.3L Gas V-8 Infographic
Source: Ford Motor Company