Man Coyote Swapped His 2004 Ford Mustang GT: “That’s Sick”

Image Credit: GavinB_SVT/Reddit

A man has taken to Reddit to show off how he was able to Coyote swap his 2004 Ford Mustang GT, which he has spent over two and a half years building. And this build involved far more than just an engine swap.

The owner of the car posted it into the r/projectcar subreddit, where people showcase their various projects and how the cars are coming on. This particular Mustang gained plenty of attention, with 1,700 upvotes and 100 comments at the time of writing. Any Mustang build is going to get good eyes on it.

The 2004 Mustang GT is part of the fourth generation, which was in production from October 1993 to May 2004. The muscle car used an updated Fox platform and carried plenty of stylistic elements from previous Mustang generations.

As standard, V6 and V8 engines were available, but of course not the Coyote V8. So this build is an impressive achievement. The Reddit user also said that the car started out as a bare shell, which explained why it took 2.5 years to put together, with some interesting bodywork components chosen.

How the Reddit User Built His Coyote Mustang

 

2004 Coyote swapped Mustang GT
by
u/GavinB_SVT in
projectcar

The car is a 2004 Ford Mustang GT, which the owner said they spent 2.5 years building along with friends. It is under the hood where the magic lies, as this Mustang now has a Gen 1 Coyote V8 engine powering it. This version of the Coyote was built from 2011 to 2014 and was used in the Ford Mustang GT, and it was also used in the Ford F-150 pickup truck.

The Mustang also has a Cobra T56 six-speed manual transmission. It is a gorgeous-looking machine, with the owner choosing the Silver Jade color to finish it in. This was a color used by Ford from the 1960s through to the 1970s, and it really does suit the shape of the 2004 Mustang GT. Incredibly, the car started as a bare shell, so a lot of work went into getting it to this point.

But a lot more went into this car than just a new engine and a pretty paint scheme. The Mustang now has Cadillac ATS front brake calipers, complete with Cobra rotors. The hood has been taken from a Cobra R, while the front bumper is from a 1999-2001 Cobra. Also used on the car are Mustang Mach 1 sail panels and glass, while the rear bumper is taken from a V6 Mustang. The Reddit user said they did this because the exhaust is run through the car and out via the quarter panels. The quarter panels and front fenders are made of OEM metal, but body-worked to fit the custom build.

Reddit Users Called It “Sick as Hell”

Coyote 2004 Mustang GT Front Quarter Coyote V8 Side
Image Credit: GavinB_SVT/Reddit

Momo Start seats, yellow seat belts, and a Ford Performance steering wheel are just some of the interior components. The owner said they still have work to do on the car, such as an oil pan and radiator swap, as well as fixing some small leaks. “They’re never truly done; always something else to do,” they said about their project car.

Reddit users loved the car and how much of a blend it was of different parts of car culture. “This build is so many facets of car culture all combined into one, and it’s sick as hell,” said one. “Sick. Big fan. Love this era of Mustang,” added another. “That’s [expletive] sweet as [expletive] dude 10/10,” said another Reddit user. So the build went down incredibly well, and it is fair to say that it does look the part. Plus, judging by a bonus video from the owner, the car sounds amazing too.

Author: Henry Kelsall

Henry joined Guessing Headlights in May 2026, and covers a wide array of topics ranging from EVs, American barn finds and supercars.  He’s combined his passion for cars with an interest in motorsports and steam locomotives, and has been an automotive journalist for over ten years. Henry has written for various publications including HotCars, AutoEvolution and most recently as a content writer for Supercar Blondie at SB Media.

Henry’s main love is for anything Japanese, or from Lancia, with the dream being to one day own a first-generation Honda NSX. Away from work, he partakes in his passion for steam engines, and is currently a trainee fireman at a British heritage railway.

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