Godzilla is a family of heavy-duty gasoline V8 engines offered by the Ford Motor Company. The engines are intended to replace the 6.8L Triton V10 and the 6.2L Boss V8 in many uses. The engine, first introduced with a displacement of 7.3L was first used with Ford Super Duty trucks starting with the 2020 model year and was later added to the Ford E-Series for the 2021 model year. A smaller-displacement 6.8L variant was introduced in 2023, but discontinued for 2027. Exterior dimensions are smaller than the 385-series 460 engine and slightly larger than those of the 351 Windsor engine. It is available as a crate engine, along with a performance-oriented version called the Megazilla.

The displacement of 7.3L is believed to be a callback to the 7.3L Power Stroke, while the 6.8L variant is a callback to the displacement of the Triton V10.

Specifications All variants are oversquare, i.e. the bore is larger than the stroke.

Variant 6.8L 7.3L (E-Series) 7.3L (Chassis Cab/Medium Duty) 7.3L (Pickup Truck) Megazilla Displacement Bore spacing Deck height Bore Stroke Valvetrain 16-valve pushrod OHV (2 valves per cylinder) Variable camshaft timing colspan="4" (Locked out) Fuel system Sequential multiport fuel injection Induction Naturally aspirated Cylinder heads Aluminum CNC-ported aluminum Pistons Hypereutectic aluminum alloy Mahle forged Connecting rods Cracked powdered metal Callies forged H-beam Crankshaft Forged steel cross-plane Compression ratio 10.8:1 10.5:1 Octane requirement (AKI) 87 (Regular) 91–93 (Premium) Peak power output at 5,000 rpm at 3,750 rpm (Economy) at 3,750 rpm (Premium) at 3,900 rpm at 5,500 rpm (2020–26) at 5,350 rpm (2027–present) at 5,580 rpm Peak torque at 4,000 rpm at 3,250 rpm (Economy) at 3,750 rpm (Premium) at 3,750 rpm at 4,050 rpm (2020–22) at 4,000 rpm (2023–2026) at 4,250 rpm (2027–present) at 3,920 rpm

Miscellaneous characteristics:

Knock sensors from the 6.2L Boss Siamesed cylinders with saw cuts between cylinders to increase cooling capacity Variable-displacement oil pump for optimum oil pressure

The use of OHV cylinder heads makes the Godzilla smaller than many overhead camshaft Modular engines. In addition, unlike many of Ford's turbocharged EcoBoost engines, the Godzilla does not use a wet belt to drive the oil pump.

7.3L variants Ford offers several different ratings of the Godzilla that prioritize either performance or economy. Performance-oriented tunings are intended as a replacement for the Modular V10 engine, while economy-oriented tunings replace the Boss V8 engine.

The highest current state of tune, offered on the Ford Super Duty (F-250/350) pickup trucks, offers at 5,500 RPM and of torque at 4,000 RPM. For the 2023 model year, torque was increased to .

For the largest Super Duty trucks (F-550/600) and the medium-duty Ford F-650/750 trucks, the engine is de-tuned to at 3,750 RPM and at 3,750 RPM.

The E-Series offers two versions that were de-tuned even further. The "premium-rated" version generates and of torque at 3,750 RPM, while the "economy-rated" variant produces and of torque at 3,250 RPM. The "economy-rated" variant was discontinued for 2024.

In 2026, for the 2027 model year, the Super Duty (F-250/F-350 pickup) Godzilla was de-rated to at 5,350 RPM and at 4,250 RPM to meet newer environmental and emissions standards.

Megazilla The Megazilla is an off-highway crate engine offshoot of the Godzilla that generates up to at 5,580 RPM and of torque at 3,920 RPM on premium fuel, with at least available from 2,500 to 6,000 RPM. It achieves these figures while retaining the 7.3L displacement, cast iron block, forged crankshaft, port injection system, and 10.5:1 compression of the original Godzilla by using CNC-ported aluminum cylinder heads, a 92 mm throttle body from the supercharged Predator V8 of the Mustang Shelby GT500, Mahle forged pistons, Callies H-beam forged connecting rods, and a high-performance camshaft with a VCT delete.

6.8L variant A short-stroked 6.8L version has been introduced in the revamped 2023 Ford Super Duty as a replacement for the 6.2L Boss.

For 2024, the 6.8L gained flex-fuel capability.

In 2026, it was reported that the 6.8L would be discontinued for 2027 alongside the standard-output 6.7L Power Stroke, leaving the 7.3L as the only gas option in the Super Duty.

Common applications 2020–present Ford Super Duty (F-250/350/450/550/600) (2023-present for 6.8 L) 2020–present Ford F-650/750 2021–present Ford E-Series (E-350/450) 2020–present Ford F-53 Motorhome Stripped Chassis 2020–present Ford F-59 Commercial Stripped Chassis 2021–present Blue Bird Vision school bus Crate engine (7.3L and Megazilla)

References