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7.3L Godzilla Fox Body Dyno Results

Created by Jay Walling / 5 min read
Last Updated: 4/12/2023

Now that our 7.3L Gozilla swapped Fox Body is complete, it is time to dyno and see what numbers it makes!

Viewing this install and using the information shared is subject to the terms set forth here - View the LMR Install Instructions Disclaimer.

FOLLOW: godzilla , godzilla swap , 79 93 mustang , fox body , tech , tech guide , dyno , 5.0resto , 50resto , project car

7.3L Godzilla Fox Body Swap | Dyno Time!


Since the recent completion of our project Fox Body with the 7.3L Godzilla swap, we have been busy with the fine details of this build. Like all of you reading this, I know everyone wants to know the "Race Specs" of this amazing ride.


7.3L Godzilla Fox Body Dyno Results


If anyone needs a refresher on this build's specs, make sure you check out all of the previous articles and videos found on the links at the bottom of the page. These will detail the engine, drivetrain, wheels/tires, and everything else for this build.


Between the dyno pulls, we attempted a few changes to see if we could squeeze a few extra ponies out on the rollers. The first pull produced 409 HP at 5100 RPM and 477 RWTQ at 3900 RPM. For the second pull, we removed our cold air intake, which resulted in 418 HP at 5100 RPM and 477 RWTQ at 4000 RPM. For the third run, we also disconnected the headers from the mid-pipe; this run netted a small drop in horsepower (416 HP at 5100 RPM), but the torque jumped slightly to 480 at 3900 RPM.


Jump To: Dyno Numbers & Photos

Swipe For More 7.3L Godzilla Fox Body Photos

  • 7.3L Godzilla Fox Body Swap Ep. 5 | Dyno, Weight, and 1/4 Mile! - Ep. 5 | Dyno, Weight, and 1/4 Mile!
  • 7.3L Godzilla Fox Body Swap Ep. 5 | Dyno, Weight, and 1/4 Mile! - Ep. 5 | Dyno, Weight, and 1/4 Mile!
  • 7.3L Godzilla Fox Body Swap Ep. 5 | Dyno, Weight, and 1/4 Mile! - Ep. 5 | Dyno, Weight, and 1/4 Mile!
  • 7.3L Godzilla Fox Body Swap Ep. 5 | Dyno, Weight, and 1/4 Mile! - Ep. 5 | Dyno, Weight, and 1/4 Mile!
  • 7.3L Godzilla Fox Body Swap Ep. 5 | Dyno, Weight, and 1/4 Mile! - Ep. 5 | Dyno, Weight, and 1/4 Mile!
  • 7.3L Godzilla Fox Body Swap Ep. 5 | Dyno, Weight, and 1/4 Mile! - Ep. 5 | Dyno, Weight, and 1/4 Mile!

Conclusion

That's going to wrap up the full breakdown of our 7.3L Project Godzilla swap! Be on the lookout for more updates and subscribe to our YouTube channel for any new updates on this build!



About the Video

TORQUE MONSTER! Stockish 7.3L Godzilla Swap Fox Body Mustang Dyno - MULTIPLE Pulls, GREAT Results

Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. The best place to go for anything Mustang related!

Published on 2023-02-14
We're having a lot of fun with our Godzilla swapped Fox Body Mustang we've dubbed Green Goblin. In typical LMR fashion, we like to provide everyone with content, so here is the dyno day for the Green Goblin.

We do multiple dyno pulls with small changes to see how they affect the numbers.
Thumbnail image of the author of this article, Jay Walling.

About the Author

Jay has written content for Late Model Restoration for over 10 years, producing over 120 articles. Jay has an extensive 25-plus-year background in automotive and is a certified Ford Technician. Read more...