Recommended Free Tools
The Ford 7.3L Godzilla is a naturally aspirated gasoline pushrod V8 for heavy-duty work. In the current U.S.-market 2026 Super Duty pickup specification, it makes 430 hp and 485 lb-ft, uses a cast-iron block and aluminum heads, and runs on regular 87-octane fuel. The engine is also available in application-specific commercial chassis and as Ford Performance crate engines, where output and installation requirements can be very different.
At a glance: what the 7.3L Godzilla is
The Ford 7.3L Godzilla is a naturally aspirated gasoline V8 designed for heavy-duty trucks, commercial chassis, and engine-swap applications. Unlike Ford’s overhead-cam Coyote family, it uses a traditional in-block camshaft, pushrods, rocker arms, and two valves per cylinder. That layout helps keep a large-displacement engine relatively compact while delivering substantial low- and mid-range torque.
In the U.S.-market 2026 Super Duty pickup specification, the engine produces 430 horsepower at 5,500 rpm and 485 lb-ft of torque at 4,000 rpm on regular 87-octane gasoline. The same basic 7.3L engine is also sold in chassis-cab, E-Series, F-650, crate-engine, and high-performance forms, but power ratings vary significantly by vehicle, calibration, transmission, cooling package, and intended duty cycle.
| Specification | 2026 Super Duty pickup |
|---|---|
| Displacement | 7.3 liters / 445 cubic inches |
| Configuration | 90-degree V8 |
| Camshaft | Single in-block camshaft |
| Valvetrain | Overhead valve, pushrods and rocker arms, two valves per cylinder |
| Induction | Naturally aspirated |
| Fuel system | Sequential multi-port electronic fuel injection |
| Bore × stroke | 4.22 × 3.98 inches |
| Compression ratio | 10.5:1 |
| Block and heads | Cast-iron block, aluminum cylinder heads |
| Crankshaft | Forged steel |
| Peak output | 430 hp at 5,500 rpm; 485 lb-ft at 4,000 rpm |
| Recommended fuel | Regular unleaded, 87 octane |
| Oil capacity with filter | 8.0 quarts / 7.6 liters |
| Coolant capacity | 22.5 quarts / 21.3 liters |
Oil and coolant capacities above are for the cited 2026 Super Duty pickup specification. Commercial vehicles, crate assemblies, and modified swaps should be checked against their specific service information.
#1 Best Overall
- FITMENT1: Full head gasket compatible with Chevy: 2004-2006 Avalanche 1500 5.3L | 2004-2008 Express 1500 5.3L | 2004-2007 Express 2500 4.8L 5.3L | 2004-2007 Express 3500 4.8L | 2002-2006 Suburban 1500 5.3L | 2002-2011 Silverado 1500 4.8L 5.3L | 2002-2011 Tahoe 4.8L 5.3L | 2004 Trailblazer EXT 5.3L. Compatible with 2004-2007 Buick Rainier 5.3L
- FITMENT2: Full head gasket compatible with GMC: 2004 Envoy XUV, XL 5.3L | 2004-2008 Savana 1500 5.3L | 2004-2007 Savana 2500 4.8L 5.3L | 2004-2007 Savana 3500 4.8L | 2002-2011 Sierra 1500 4.8L 5.3L | 2002-2011 Yukon 4.8L 5.3L | 2002-2006 Yukon XL 1500 5.3L. Compatible with 2004 Isuzu Ascender 5.3L, 2004-2005 Cadillac Escalade 5.3L
- PACKAGE INCLUDES: Full engine head gasket set includes multiple layers steel head gaskets, rear crankshaft gasket seals, engine oil pan gasket, valley cover gasket, exhaust Intake manifold gaskets, knock sensor grommets, damping plug heads, Valve stem seals, fiber base plates, other o-rings and gaskets
- GOOD SEALING: Designed to withstand extreme temperatures and pressures, our gaskets form a tight seal, preventing oil, coolant and combustion leaks for enhanced engine efficiency
- PERFECT FIT: Engineered to OEM specifications, our gasket set ensures a perfect fit, minimizing the risk of leaks and optimizing engine performance
Why it is called “Godzilla”
“Godzilla” is the enthusiast and aftermarket name for Ford’s modern 7.3L gasoline V8. Ford’s production literature generally identifies the engine by its displacement and vehicle application, while aftermarket suppliers such as Holley use “Godzilla” as the platform name for 2020-and-newer 7.3L components.
Do not confuse this engine with Ford’s older 7.3L Power Stroke diesel. They are different engines with different fuel systems, architecture, controls, transmissions, operating characteristics, and applications. The Godzilla is a gasoline V8.
Ford introduced the gasoline 7.3L for the 2020 Super Duty. The launch engine was paired with Ford’s TorqShift ten-speed automatic and was aimed at both commercial operators and private heavy-duty truck buyers. It was not intended as a direct replacement for the overhead-cam Coyote V8; the two engines serve different packaging, torque, and duty-cycle goals.
Technical features of the Ford 7.3L V8
Large displacement with a compact pushrod layout
The engine displaces 7.3 liters, or 445 cubic inches, from a 4.22-inch bore and 3.98-inch stroke. Its single camshaft sits inside the engine block and operates the valves through lifters, pushrods, and rocker arms.
This overhead-valve arrangement avoids the tall cylinder-head and camshaft packaging associated with a dual-overhead-cam engine of similar displacement. The result is a relatively compact package for a large V8. Its two-valve-per-cylinder design, naturally aspirated induction, and substantial displacement emphasize usable torque without requiring a turbocharger or supercharger.
The architecture also explains why the engine appeals to truck builders: it combines a physically manageable engine package with a large torque-producing displacement. The emphasis is not on the highest specific output from a small engine, but on predictable gasoline power and heavy-load usability.
Cast-iron block and forged-steel crankshaft
The production engine uses a cast-iron block, aluminum cylinder heads, five main bearings, and a forged-steel crankshaft. Ford’s technical material also identifies four-bolt and cross-bolted main-bearing construction and piston-cooling oil jets.
Those features are consistent with an engine designed to tolerate sustained load, high cylinder pressure, and commercial service. They should not be interpreted as a guaranteed service life or as proof that every stock engine will withstand any racing or boosted application. Installation, calibration, cooling, lubrication, rpm, maintenance, and duty cycle remain decisive.
Quick wins for a faster PC:
Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Clear out junk files and repair common Windows errorsFree Scan →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Variable cam timing, port injection, and naturally aspirated induction
Ford describes the production 7.3L as an overhead-valve, port-fuel-injected “big-block” style V8 with variable cam timing. Ford’s launch designation was 2V DEVCT NA PFI V8: two valves per cylinder, variable cam timing, naturally aspirated induction, and port fuel injection.
- Port fuel injection: Fuel is delivered in the intake port rather than by a direct injector inside the combustion chamber.
- Naturally aspirated induction: The production truck engine does not use a turbocharger or supercharger.
- Variable cam timing: Cam timing can be adjusted to balance torque, emissions, drivability, and high-rpm power across the operating range.
- Two valves per cylinder: The simpler valvetrain supports the compact pushrod package and the engine’s truck-oriented design.
From an engineering standpoint, this combination favors a broad, useful torque curve while retaining meaningful power at higher engine speeds. That is an interpretation of the documented architecture and output ratings, not a substitute for independent dyno testing.
Horsepower and torque: why the numbers differ
Not every Ford 7.3L has the same rating. Ford’s initial 2020 Super Duty towing material listed 430 hp and 475 lb-ft. Current 2026 Super Duty pickup specifications list 430 hp and 485 lb-ft. The 10-lb-ft difference should be understood as a model-year or application calibration change, not as a contradiction or an increase that applies to every 7.3L engine.
Rank #2
- OE Number - HS7733PT15, HS13010, HS1178VN, FS1178VL, HS1178VL, HS31004G, 21643CS, 21644CS, VG6631M15, HS5746, 636439, HS5746A, 021060101, HS5746W, 10174955, HS31006, 10054512, 10054523, 10132787. Our rigorously tested, state-of-the-art manufacturing process results in fully OEM-specified fittings that are easy to install. Advanced manufacturing techniques ensure durability and optimal operation at higher or lower temperatures, saving you money and time
- Fitment - The engine cylinder head gasket kit is compatible with 1988-1995 Chevy C1500/C2500/C3500/K1500/K2500/K3500 5.7L, 1987-1995 G20 5.7L, 1987-1994 Blazer 5.7L, 1992-1995 C1500/C2500/K1500/K2500 Suburban 5.7L, 1987-1996 G30 5.7L, 1995-1995 Tahoe 5.7L, 1987-1987 R10/V10/V20 5.7L, 1987-1996 P30 5.7L(engineVIN:K/M), 1987-1992 Camaro 5.7L, 1989-1991 R3500/R1500 Suburban/V1500 Suburban/V2500 Suburban/V3500 5.7L, 1991-1995 C3500HD 5.7L, 1987-1993 Caprice 5.7L, 1987-1988 R20/R30/R10 Suburban/V10 Suburban/V20 Suburban/V30 5.7L, 1993-1995 W4500 Tiltmaster 5.7L, 1989-1989 R2500 5.7L
- Fitment - The engine cylinder head gasket kit is compatible with 1988-1995 GMC C1500/C2500/C3500/K1500/K2500/K3500 5.7L, 1987-1995 G2500 5.7L, 1992-1995 C1500 Suburban/C2500 Suburban/K1500 Suburban/K2500 Suburban/Yukon 5.7L, 1987-1996 G3500 5.7L(engineVIN:K/M), 1987-1991 Jimmy/R3500/R1500 Suburban/V1500 Suburban/V2500 Suburban/V3500 5.7L, 1991-1995 C3500HD 5.7L, 1987-1987 R1500/V1500/V2500 5.7L, 1987-1989 R2500 5.7L, 1990-1992 Cadillac Brougham 5.7L, 1993-1993 Fleetwood, 1992-1993 Roadmaster, 1987-1992 Pontiac Firebird 5.7L, 1993-1995 NPR 5.7L
- Package Included - MLS Head Gasket x 2, Valve Cover Gasket x 2, Graphite Head Gasket x 3, RTV Silicone x 1, Intake Manifold Gasket x 2, Exhaust Manifold Gasket x 6, Valve Oil Seals x 16, Other Small Seals x 21
- Superior Quality - Our engine cylinder head gasket is made of multi-layer stainless steel + graphite composite material, which can withstand 400℃ high temperature and 15bar high pressure. Excellent resistance to high temperature, high pressure, and corrosion, ensures maximum compression ratio allowing the engine to maintain an excellent seal for a longer period of time
| Application | Published rating in the cited material | Why it matters |
|---|---|---|
| 2020 Super Duty pickup launch | 430 hp; 475 lb-ft | Initial production-era pickup rating |
| 2025 Super Duty chassis cab | 430 hp; 475 lb-ft | Commercial chassis calibration; do not automatically substitute the pickup rating |
| 2026 Super Duty pickup | 430 hp; 485 lb-ft | Current pickup specification in the cited Ford technical sheet |
| 2026–2027 E-Series cutaway and stripped chassis | 325 hp; 450 lb-ft | Commercial upfit-oriented calibration |
| F-650 commercial chassis | 350 hp; 468 lb-ft | Different chassis, transmission, cooling, and duty-cycle requirements |
When comparing trucks, always put the model year and application next to the horsepower and torque figure. A 7.3L pickup, E-Series cutaway, F-650, and crate engine may share the same basic displacement while having different calibrations and supporting hardware.
Factory applications
Super Duty pickups
The 7.3L was introduced in the F-Series Super Duty pickup for 2020 and continued through the subsequent Super Duty updates. In the cited 2026 material, it is rated at 430 hp and 485 lb-ft and paired with Ford’s heavy-duty ten-speed automatic in the pickup application.
Ford’s current model presentation identifies the 7.3L as standard on King Ranch and Platinum configurations, although availability can vary by trim, cab style, drivetrain, market, and equipment configuration. Buyers should verify the window sticker and order guide for the exact truck rather than assuming that every Super Duty configuration offers the engine in the same way.
The pickup version is the relevant specification for owners comparing gasoline towing performance, payload, axle ratios, and factory service support in an F-250 or F-350. Its 430-hp/485-lb-ft rating should not be used when evaluating an E-Series or F-650.
Super Duty chassis cab
Ford also offers the 7.3L in Super Duty chassis-cab vehicles. The cited 2025 commercial material lists 430 hp and 475 lb-ft for that application and describes the engine as a naturally aspirated overhead-valve V8 with port fuel injection, variable cam timing, a cast-iron block, forged-steel crankshaft, and four-bolt/cross-bolted main-bearing construction.
Do these 3 things before closing this tab:
1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsA chassis cab has different body, cooling, axle, transmission, upfit, and duty-cycle requirements from a pickup. Its rating therefore should be treated as its own factory specification, even when the engine’s displacement and major architecture are shared with the pickup version.
E-Series cutaway and stripped chassis
Ford Pro lists the 7.3L V8 in E-350 and E-450 cutaway and stripped-chassis vehicles. In the cited 2026–2027 fleet guide, the commercial configuration produces 325 hp at 3,750 rpm and 450 lb-ft at 3,750 rpm.
These chassis support motorhomes, shuttle buses, school and activity buses, ambulances, delivery bodies, and other custom upfits. The cited E-Series material includes 138-, 158-, and 176-inch wheelbase configurations and lists a maximum E-450 cutaway GVWR of 14,500 pounds.
That GVWR is not the same thing as payload. Actual payload and towing capacity depend on the specific chassis, axle ratio, body, equipment, center of gravity, and upfit. The certification label and current Ford towing information for the completed vehicle take priority over a general fleet-guide figure.
Windows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallOutdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchF-650 commercial chassis
Ford Pro identifies the 7.3L gas V8 as an available engine in F-650 commercial chassis applications. In the cited configuration, it is rated at 350 hp and 468 lb-ft and paired with a TorqShift HD six-speed automatic transmission.
The lower or different rating compared with the Super Duty pickup is not evidence that the engine is a different displacement. Commercial chassis ratings reflect the complete powertrain: calibration, transmission, cooling system, axle, vehicle weight, and intended duty cycle.
Rank #3
- Compatible Model: The engine gasket rebuild kit compatible with Chevy: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 Silverado 1500 4.8L 5.3L | 2004-2006 Avalanche 1500 5.3L | 2004-2008 Express 1500 5.3L | 2004-2007 Express 2500 4.8L 5.3L | 2004-2007 Express 3500 4.8L | 2002-2006 Suburban 1500 5.3L | 2002-2011 Tahoe 4.8L 5.3L | 2004 Trailblazer EXT 5.3L
- Compatible Model: The engine head gasket set compatible with GMC: 2004 Envoy XUV, XL 5.3L | 2004-2008 Savana 1500 5.3L | 2004-2007 Savana 2500 4.8L 5.3L | 2004-2007 Savana 3500 4.8L | 2002-2011 Sierra 1500 4.8L 5.3L | 2002-2011 Yukon 4.8L 5.3L | 2002-2006 Yukon XL 1500 5.3L. Also compatible with 2004 Isuzu Ascender 5.3L | 2004-2005 Cadillac Escalade 5.3L | 2004-2007 Buick Rainier 5.3L
- Replacement Part Number: CS9284, HS26191PT, 12637683, vs50504r1, 12482063, MS92211, 12617944, 12589226, 12633904, 12639249, 12558178, MS98016T, MIS16340, 89060413, 12589226. Before placing your order, Please verify that these part numbers match your vehicle
- High Quality: Manufactured to meet OEM specifications with multi-layer steel, this motor gasket kit offers superior sealing and durability. It prevents oil, coolant, and combustion leaks while maintaining consistent engine performance in both high and low temperatures. By reducing wear and preventing leaks, it extends engine life and saves you from costly repairs and downtime
- Package Include: Full cylinder head gasket set includes multiple layers steel head gaskets, exhaust & intake manifold gaskets, rear cover gasket, timing cover gasket, engine oil pan gasket, valley cover gasket, knock sensor grommets, valve stem seals, damping plug heads, fiber base plates, other o-rings and gaskets. (Bolts are NOT included)
Why the 7.3L is used in motorhomes and commercial vehicles
Ford Pro markets the engine for Class A and Class C motorhome chassis, E-Series cutaways, shuttle buses, specialized commercial bodies, and other upfits. These applications value a naturally aspirated gasoline powertrain, substantial displacement, familiar service procedures, and predictable output in a heavy chassis.
It is not a diesel equivalent. A diesel may be preferable when maximum low-speed torque, long-range fuel economy, or heavy commercial duty is the priority. The 7.3L gasoline V8 can instead make sense where gasoline availability, purchase cost, packaging, service familiarity, and a simpler naturally aspirated layout carry more weight. Fuel economy should not be assumed from the engine’s displacement or architecture; it depends on the completed vehicle and operating conditions.
The Tool Desk
Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Ford Performance crate-engine versions
M-6007-73B: production-style 430-hp crate engine
Ford Performance’s M-6007-73B is a 7.3L 2024 Super Duty-based crate engine. Ford lists it at 430 hp and 485 lb-ft with 10.5:1 compression, port fuel injection, a cast-iron production block, aluminum heads, a forged-steel crankshaft, and variable cam timing. The listed engine weight is 580 pounds.
The assembly includes several useful production components:
- Intake manifold and 87-mm throttle body
- Exhaust manifolds
- Eight-quart oil pan and oil cooler
- Ignition coils and wires
- Production flexplate
- Factory lift brackets
- Shipping and storage cradle
It is still not automatically a complete running swap. Ford states that the crate engine requires an M-6017-SD73B or M-6017-SD73M control pack and custom calibration. Ford also lists a dedicated M-11000-SD73 starter, an M-8600-SD73 front-engine accessory-drive kit, and an M-8600-SD73AC air-conditioning add-on kit.
For a central starting point, compare a complete Ford 7.3L Godzilla engine only after confirming whether the listing is the M-6007-73B assembly, a long block, or another package. Those descriptions are not interchangeable, and fitment, control hardware, accessory drive, transmission, fuel, exhaust, cooling, wiring, calibration, and emissions requirements vary.
M-6007-MZ73 Megazilla
Ford Performance’s M-6007-MZ73 Megazilla is a substantially more performance-oriented version of the platform. Under the cited SAE J607 standard, Ford rates it at 612 hp at 5,580 rpm and 670 lb-ft at 3,920 rpm. Ford also lists more than 500 lb-ft from 2,500 to 6,000 rpm.
Compared with the production-style engine, Megazilla adds or changes significant hardware:
- CNC-ported aluminum cylinder heads
- Low-profile intake manifold and 92-mm throttle body
- Forged Mahle pistons
- Callies H-beam forged connecting rods
- Production steel crankshaft
- High-performance camshaft
- Variable cam timing deleted
Ford labels Megazilla for competition or off-highway use and requires a control pack and custom calibration. Its 612-hp output must not be presented as a factory Super Duty pickup rating. Installation in a road vehicle may also create emissions-compliance problems depending on the jurisdiction and the vehicle’s certification requirements.
For a road-oriented build, separate the production-style crate engine from the competition-oriented product before comparing prices or expected legality. Ford Performance M-6007-73B is the production-based reference point; Ford Performance Megazilla is the higher-output, modified alternative with different use restrictions and installation requirements.
Megazilla 2.0
In January 2025, Ford Performance announced a supercharged Megazilla 2.0. The announcement described forged pistons and connecting rods, a steel crankshaft, ported and polished cylinder heads, upgraded valve springs, and a Gen 6 3.0-liter Whipple supercharger.
Ford projected output above 1,000 hp in that announcement. Until Ford publishes a final specification or certification that supersedes the announcement, “more than 1,000 hp” should be treated as a projection rather than a final production rating. It is not a factory Super Duty engine specification.
Rank #4
- COMPATIBILITY – Fits 1980-1985 Chevrolet B60; 1983-1985 Chevrolet P60; 1980-1985 Chevrolet K5 Blazer; 1980-1985 Chevrolet C10; 1980-1985 Chevrolet C10 Suburban; 1980-1980 Chevrolet C20; 1981-1985 Chevrolet C20; 1980-1980 Chevrolet C20 Suburban; 1981-1985
- GET THE RIGHT PART -- Before purchasing, please check the “Amazon Confirmed Fit” bar to ensure this part will fit your vehicle; enter all vehicle information (year, make, model, engine and trim) for compatibility and check qualifier notes. If the “Amazon Confirmed Fit” bar has an “i” in a blue circle, this product has additional notes. Please hover over the “i” on the bar to see notes before making your purchase
- Meets or exceeds all original equipment specifications
- Application specific design to ensure a perfect fit
- Engineered and manufactured specifically for the repair environment
Planning a 7.3L Godzilla engine swap
The Godzilla has a growing aftermarket ecosystem, but calling it a “crate-engine swap” does not mean the installation is bolt-in. The engine may be adaptable to many chassis, yet the surrounding systems determine whether the project can actually run, fit, cool, shift, and comply with applicable laws.
Components to plan before buying the engine
| System | What must be confirmed |
|---|---|
| Engine package | Complete engine, long block, intake, throttle body, oil pan, flexplate, coils, and included accessories |
| Engine management | Required control pack, wiring, sensors, ECU compatibility, and custom calibration |
| Front accessory drive | Alternator position, belt routing, steering clearance, air-conditioning compressor, and radiator clearance |
| Starter and transmission | Starter location, bellhousing interface, flexplate or flywheel, converter or clutch, crossmember, and driveshaft |
| Oil pan and pickup | Crossmember, steering, ground clearance, oil-pump pickup, windage, and sump location |
| Mounts | Frame width, engine position, mount height, exhaust clearance, and whether fabrication or welding is required |
| Cooling | Radiator capacity, hose routing, fan or electric-fan control, thermostat housing, and transmission cooling |
| Fuel system | High-pressure requirements for port injection, pump capacity, lines, tank compatibility, and fuel-control integration |
| Exhaust | Manifold or header fitment, steering and frame clearance, oxygen-sensor locations, catalytic converters, and emissions equipment |
| Legal compliance | Registration, inspection, emissions certification, noise rules, and whether the chosen engine is road-legal in the intended vehicle |
Ford Performance identifies the Megazilla bellhousing bolt pattern as shared with Ford 4.6/5.4 and 5.0L Coyote applications. That is useful for transmission planning, but it does not make every transmission, clutch, starter, flexplate, accessory, or control system automatically compatible. Confirm each interface independently.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
Aftermarket support
Holley maintains a dedicated Godzilla catalog covering accessory drives, oil pans, oil pumps, timing covers, alternator brackets, cooling and fuel components, ignition coils, transmission adapters, pilot bearings, and other swap parts. Holley describes its accessory-drive and oiling solutions as helping place the 7.3L in additional platforms, including Fox-body applications.
A Holley Godzilla swap system can simplify component sourcing, but it does not eliminate chassis-specific measurements. Check oil-pan clearance, accessory location, steering, radiator placement, transmission angle, exhaust routing, and hood clearance before ordering a complete group of parts.
Universal weld-in components also exist. For example, Summit Racing Godzilla motor mounts are listed for 2020-and-newer Ford 7.3L engines, but the relevant product is a fabrication part, not a universal bolt-in kit for every chassis. A builder should be prepared to measure, position, weld, reinforce, and verify driveline alignment.
Control packs are not optional swap accessories
Ford’s crate-engine documentation specifically identifies control packs as required. A 7.3L Godzilla control pack should therefore be treated as core engine-management hardware, not as a cosmetic or optional upgrade. Confirm the control-pack part number, included harnesses, ECU, accelerator-pedal strategy, transmission communication, immobilizer behavior, sensor compatibility, and calibration support for the intended application.
Free tools Windows power users keep installed
One-click scans. No signup required.
Do not assume that a factory truck ECU can simply be transferred into an unrelated chassis. The wiring network, body modules, transmission, throttle strategy, emissions equipment, and calibration may all depend on the original vehicle architecture.
Which 7.3L version is right for a project?
| Use case | Most relevant choice | Important qualification |
|---|---|---|
| Factory Super Duty ownership | Production 7.3L pickup calibration | Use the exact model-year rating; the current cited figure is 430 hp and 485 lb-ft |
| Commercial body or motorhome | Ford’s chassis-specific 7.3L application | E-Series and F-650 ratings differ from Super Duty pickups |
| Street-oriented engine swap | Production-style M-6007-73B or a complete compatible package | Budget for controls, accessories, mounts, transmission integration, exhaust, cooling, and legal compliance |
| High-output competition build | Megazilla M-6007-MZ73 | 612 hp/670 lb-ft rating, custom calibration, and competition/off-highway positioning |
| Extreme forced-induction project | Megazilla 2.0, subject to final specifications | The cited Ford announcement projected more than 1,000 hp; that is not a final certified rating |
For a truck owner, the best choice is the factory calibration that matches the truck’s tow rating, payload, axle, transmission, and intended work. For a swap builder, the cheapest engine is rarely the cheapest completed installation: missing controls, oil-pan solutions, accessory drives, mounts, cooling, exhaust, and calibration can quickly exceed the initial engine-price difference.
Common mistakes to avoid
- Using one rating for every vehicle: Always identify the model year and application beside the output figure.
- Confusing gasoline and diesel engines: The 7.3L Godzilla is not the 7.3L Power Stroke.
- Calling Megazilla a stock truck engine: The 612-hp/670-lb-ft figures apply to a modified crate engine, not a factory Super Duty pickup.
- Treating the Megazilla 2.0 projection as a final spec: The cited “more than 1,000 hp” figure came from an announcement and should remain labeled as projected unless superseded by final Ford documentation.
- Assuming a crate engine is a running swap: Verify the control pack, calibration, starter, accessory drive, transmission interface, fuel system, cooling, exhaust, mounts, and wiring.
- Assuming a shared bellhousing pattern solves the swap: Transmission attachment is only one part of installation compatibility.
- Ignoring emissions rules: Competition-oriented engines and parts may not be legal for public-road use in every jurisdiction or vehicle.
- Using pickup specifications in a commercial chassis: E-Series and F-650 ratings are application-specific.
Source and specification note
The figures in this article are tied to the Ford material identified in the research: the 2020 Super Duty launch and towing documents, current 2025 commercial and chassis-cab information, the 2026 Super Duty technical specification, Ford Pro’s 2026–2027 E-Series fleet guide, F-650 commercial information, and Ford Performance crate-engine documentation. Ford can change ratings, availability, included components, and legal-use statements by model year or product revision, so the applicable vehicle order guide, owner documentation, and certification label should control a purchase decision.
Frequently Asked Questions
Is the Ford 7.3L Godzilla the same as the 7.3L Power Stroke?
No. The 7.3L Godzilla is a gasoline V8, while the 7.3L Power Stroke is a diesel engine. They have different architectures, fuel systems, controls, transmissions, and applications.
The Tool Desk
Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →How much horsepower and torque does the 7.3L Godzilla make?
The current cited 2026 Super Duty pickup specification is 430 hp at 5,500 rpm and 485 lb-ft at 4,000 rpm. Earlier 2020 pickup material listed 475 lb-ft, and commercial versions have different ratings.
Is the 7.3L Godzilla a bolt-in swap?
Not automatically. A shared bellhousing pattern may help with transmission planning, but mounts, oil-pan clearance, accessory drives, wiring, controls, calibration, cooling, exhaust, fuel delivery, and emissions equipment still require application-specific work.
What is the difference between the 7.3L crate engine, Megazilla, and Megazilla 2.0?
Ford Performance’s M-6007-73B is the production-style 430-hp crate engine. Megazilla is a modified 612-hp/670-lb-ft performance crate engine intended for competition or off-highway use, and Megazilla 2.0 was announced with projected output above 1,000 hp.
What fuel does the production 7.3L Godzilla use?
The production Super Duty pickup version uses regular 87-octane gasoline. Modified crate engines must be operated according to their specific Ford Performance documentation and calibration requirements.
The Bottom Line
Bottom line: The 7.3L Godzilla is a modern, naturally aspirated, pushrod gasoline V8 built around displacement, packaging, and heavy-duty usability. The current Super Duty pickup version makes 430 hp and 485 lb-ft, but commercial applications and crate engines use different ratings. Its swap potential is strong, yet a successful installation requires far more than the engine itself: controls, calibration, accessories, mounts, oiling, cooling, exhaust, transmission integration, and emissions compliance all need to be planned.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
