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7.3L Godzilla Vs 5.0 Coyote Swap Full Guide

Created by Tyler Rodriquez / 10 min read
Date Created: 1/22/2024
Last Updated: 1/22/2024

Debating on what motor to swap into your Mustang? Follow along as we walk you through two popular swaps - the 7.3L Godzilla and the 5.0 Coyote.

Viewing this install and using the information shared is subject to the terms set forth here - View the LMR Install Instructions Disclaimer.
Swapping a new motor into your Mustang is nothing new for enthusiasts, but what has changed is the engine of choice for making reliable power. While we have seen everything put into the Fox Chassis, from LS engines to Honda K series engines, most Fox Body Mustang enthusiasts like to stick to Ford Engines for their swaps. What better powerplant for a tired, pushrod 5.0 than a newer, high-horsepower Ford engine? Today, we are going to look at two popular Fox Body swaps, the 5.0L Coyote and the 7.3L Godzilla engine.

Godzilla 7.3 Vs Gen 1, 2, 3 Coyote Engine Specifications

Godzilla 7.3L Gen 1 Coyote (Mustang) Gen 2 Coyote (Mustang) Gen 3 Coyote (Mustang)
Displacement 7.3 Liters 5.0 Liters 5.0 Liters 5.0 Liters
Horsepower 430 HP 412/420 HP 435 HP 460 HP
Torque 475 Lb-Ft 390 Lb-Ft 400 Lb-Ft 420 Lb-Ft
Compression 10.5:1 11:1 11:1 12:1
Stroke 107.2MM 92.2MM 92.2MM 93.0MM
Stroke 101.0MM 92.7MM 92.7MM 93.7MM
Redline N/A 7000 RPM 7000 RPM 7500 RPM
Cylinder Head Aluminum Raw Cast Raw Cast Raw Cast
Firing Order 1-5-4-8-6-3-2-7 1-5-4-8-6-3-7-2 1-5-4-8-6-3-7-2 1-5-4-8-6-3-7-2
Engine Weight 580 LBS 441 LBS 444 LBS 445 LBS
Valve Size 55.13MM (I) / 42.53MM (E) 37.00MM (I) / 31.00MM (E) 37.30MM (I) / 31.80MM (E) 37.70MM (I) / 32.00MM (E)
Camshaft Lift 13.67MM (I) / 15.26MM (E) 12.00MM (I) / 12.00MM (E) 13.00MM (I) / 13.00MM (E) 14.00MM (I) / 14.00MM (E)

Godzilla 7.3L Engine Performance

Let’s kick things off with the new kid on the block, the 7.3L pushrod V8, nicknamed “Godzilla.” The Godzilla engine is the standard engine found in 2020+ Ford Super Duty trucks. This 445 cubic-inch engine is known for its robust performance and high torque numbers, making it a perfect solution for heavy-duty applications. As time went on, Ford offered the Godzilla in a crate-engine format to make Godzilla-swapping just about any vehicle much easier.



Power and Torque

Ford Performance’s Godzilla crate engine prioritizes torque over horsepower, unlike the Coyote engine, due to it being built for heavy-duty truck applications where towing is important. That does not mean it doesn’t make good power. This 7.3L makes a whopping 430 horsepower and 475 lb/ft of torque at the crank in factory form. While these horsepower numbers are on par with Gen 2 Coyote numbers, the torque is leagues ahead of even the newer Gen 4 Coyote. This is to be expected as Ford did not need as much torque in a performance car when compared to a truck built for towing. However, 475 lb/ft of torque sounds pretty fun in a 3000lb Fox, and you may need to invest in a few sets of tires!

Watch Our Fox Body Godzilla Swap Dyno

Gen 3 Coyote 5.0 Engine Performance

The Coyote engine has gone through a few different generations, spanning from the Gen 1 Coyote in 2011 to the Gen 4 Coyote in 2024. With four different options to choose from, you can find a wide variety of Coyote engines online, in junkyards, or on online marketplaces. For the purposes of this article, we are going to focus on the Coyote that is closest to the Godzilla, the Gen 3 engine. At the time of this article, the Gen 3 Coyote is the only Generation available from Ford Performance as a new crate engine.

 

Power And Torque

In 2018, Ford Motor Company introduced the Gen 3 Coyote in the redesigned S550 Ford Mustang. This third-generation 5.0L got a bump in power, putting down 460 horsepower and 420 lb-ft of torque. Designed for high-performance street applications, this is to be expected for the Mustang platform. One of the best features of the Coyote is that it performs very well with bolt-ons, making good N/A power, and becomes a whole new beast with boost. The Coyote motor has been proven to respond well to roots-style blowers, centrifugal superchargers, and single or twin turbo setups.


Watch Our Gen 3 Coyote Dyno

Pros and Cons Comparison

Godzilla 7.3 Engine

Pros

Smaller Size - Thanks to the pushrod configuration, the Godzilla has a smaller engine width-wise, making it easier to fit between the strut towers of a 79-04 Mustang.
Torque Monster - The Godzilla is the clear winner for torque, beating out the Coyote by about 50 lb-ft of torque.
N/A Power Potential - One of the biggest strengths of the Godzilla engine is its potential to make big N/A power with the right upgrades.

Cons

Heavier Engine - Due to the iron block, the Godzilla is going to weigh in at nearly 150 lbs more than the Coyote engine.
Will Most Likely Need A Low Profile Intake Manifold - Due to the original goal of the Godzilla being used in trucks, the intake manifold is designed to be taller. When swapping into a Fox or SN, you will most likely need drop mounts or a cowl hood, possibly both, to fit it in your vehicle as is. A low-profile Godzilla intake manifold solves this issue for most. vehicles.
Swap Parts Market Is Still Emerging - Since the Godzilla Swap is still in its infancy, there is not as big of a market for swap parts when compared to the Coyote Swap.

Gen 3 Coyote 5.0 Engine

Pros

Vast Aftermarket Swap Market - The Coyote swap market is far more advanced than the Godzilla swap market as the Coyote engine has been available for over a decade. LMR.com has a wide selection of Mustang Coyote Swap Parts available to complete the swap.
Mates To Many Factory Transmissions - Since the Coyote uses the same basic dimensions as the earlier 4.6/5.4 engines, many of the same transmissions will fit. There are plenty of options for bell housings as well to get your Coyote mated to other transmissions.
Fits Under Most Factory Hoods - Unlike the Godzilla, the Coyote engine was designed with a smaller profile, allowing it to fit under most factory hoods on 79-04 Mustangs. The use of drop mounts may be needed for certain applications or if you will be using a taller intake manifold.
Used Engines Can Be Found Cheaply - With the 2018 Mustang being six years old, many used engines can be found cheaply through junkyards or online marketplaces. The Gen 3 Coyote was also used in the F-150; however, there are a few differences due to the configuration of the truck engine.

Cons

Crate Engine Pricing - If you plan on purchasing a brand new Gen 3 Coyote Engine, the cost can seem a little intimidating. However, you will be getting a brand-new motor with a harness, so you will not have to source one in the aftermarket. Can you get a Gen 3 cheaper used? Of course, but for those who want a brand-new crate engine, you will need to budget accordingly.
Coyote Engine Width - Due to the Dual Overhead Cam configuration on the Coyote engine, the overall width of this engine is pretty wide. While thousands of enthusiasts have done this swap in 79-04 Mustangs successfully, there will be a few places that will need some modifying.

Aftermarket Support

Godzilla 7.3 Engine

At the time of this article, the Godzilla swap was rapidly growing as Ford Performance and other brands brought new parts to the market. While there is just about everything you need to complete the swap, there is a lack of options when compared to Coyote Swaps. As the years go on, you can expect to see more and more brands developing parts for the Godzilla swap, making it easier and cheaper to complete the swap.
Shop Godzilla Swap Parts


Gen 3 Coyote 5.0 Engine

When it comes to versatility and part availability, the Coyote swap wins the battle. There is no shortage of Coyote swap components and some manufacturers have developed Coyote swap parts for specific vehicles. The Coyote swap aftermarket support is growing daily, and you can expect to see swap parts become more personalized for each vehicle.
Shop Coyote Swap Parts

Cost Of Swap

Before we dive into the cost of each swap, we do need to disclose that these are estimates based on the current market price. Each swap will be different, and you will want to use this as a guideline. There will be other parts you may need to complete your swap, such as different hoods, oil pans, etc.

These swaps can cost anywhere between $10,000-$50,000 when all is said and done. You can save a pretty penny by purchasing used components, but for the sake of this article, we are looking at brand-new prices.
NOTE: Prices Will Vary And Are Only Estimates

Godzilla 7.3 Engine

  • Engine - $7,500-$8,500
  • Transmission - $2,500-$3,500 (New Tremec TKX For Reference)
  • Control Pack - $2,000-$3,000
  • K-Member/Engine Mounts - $500-$700
  • Brake System - $400-$1,500
  • Accessory Drive/Power Steering - $700-$800
  • Fuel System - $1,000-$1,500
  • Exhaust - $500-$2,000
  • Cooling System - $200-$1,500
  • A/C (Optional) - $800-$2000

Gen 3 Coyote 5.0 Engine

  • Engine - $8,000-$9,00
  • Transmission - $2,500-$3,500 (New Tremec TKX For Reference)
  • Control Pack - $2,000-$3,000
  • K-Member/Engine Mounts - $600 - $800
  • Brake System -$400-$1,500
  • Accessory Drive/Power Steering -$1,100-$1,500
  • Fuel System - $650-$1,150
  • Exhaust - $500-$2,000
  • Cooling System - $200-$1,500
  • A/C (Optional) - $800-$2000

Conclusion

So there you have it, everything you need to know when deciding on whether you want to go with a Godzilla engine or a Coyote engine for your next swap. While the Godzilla swap may be a little more restricted in the realm of aftermarket support, this is quickly changing by the day and we are excited to see where this will go. Check out all of our Godzilla 7.3L swap and Coyote engine swap parts at LMR.com

Thumbnail image of the author of this article, Tyler Rodriquez.

About the Author

Tyler has written content for Late Model Restoration for nearly 8 years, producing over 300 articles. As an avid New Edge fan, Tyler has owned 4 2004 Mustangs and an 88 Convertible Fox Body. Read more...