The Ford Godzilla engine is a family of V8 engines offered by the Ford Motor Company. The engines are intended to replace the Modular V10 engine and the Boss V8 engine 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 was introduced in 2023. 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.

Attributes

Because the engine uses overhead valves actuated by pushrods, it is smaller than many of the overhead camshaft Ford Modular engines, and can be fitted to older cars.

Variable tuning

Ford offers several different ratings of the engines that can 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-250/350/450) pickup trucks, offers 430 horsepower (321 kW) at 5,500 RPM and 475 pound-feet (644 N⋅m) of torque at 4,000 RPM.

For the largest Super Duty trucks (F-550/600) and the medium-duty Ford F-650/750 trucks, the engine is de-tuned to 335 hp (250 kW) at 3,750 RPM and 468 lb⋅ft (635 N⋅m) at 3,750 RPM.

The E-Series offers two versions that were de-tuned even further. The "premium-rated" version generates 325 hp (242 kW) and 450 lb⋅ft (610 N⋅m) of torque at 3,750 RPM, while the "economy-rated" variant produces 300 hp (224 kW) and 425 lb⋅ft (576 N⋅m) of torque at 3,250 RPM. The "economy-rated" variant was discontinued for 2024.

6.8L variant

A short-stroked 6.8L version has been introduced in the revamped 2023 Ford Super Duty as a replacement for the predecessor's 6.2L SOHC Boss V8.

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

Megazilla

The Megazilla is an off-highway crate engine based on the 7.3L Godzilla that makes up to 612 hp (456 kW) at 5,580 RPM and 670 lb⋅ft (908 N⋅m) of torque at 3,920 RPM on premium fuel, with at least 500 lb⋅ft (678 N⋅m) available from 2,500 to 6,000 RPM. It achieves these figures while retaining the 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, Mahle forged pistons, Callies H-beam forged connecting rods, and a high-performance camshaft without VCT.

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)