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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
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