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With enough know-how, patience, and money, you can turn just about any muscle car, sleeper, sedan, or sports car into a custom street-stomper. Builders can say the same for America’s original pony car, the Ford Mustang. However, swapping an SN-95’s V8 or the newer Coyote engine into a classic Mustang is too pedestrian for some folks. Here are some of the coolest, wildest, and weirdest custom Mustang builds we’ve ever seen. 

Have you ever heard of a Ferrari-swapped Ford Mustang?

In 2018, SEMA hosted an automotive oddity: a custom Ferrari-swapped “Corruptt” Mustang. The gray Ford has a chopped roof, RideTech suspension to sit dangerously low, and Wilwood brakes with bright yellow calipers. However, the real showpiece is the 700-horsepower, twin-turbocharged 4.3L Ferrari V8 engine courtesy of Nelson Racing Engines. Of course, the engine’s accents match the bright yellow calipers to complete an odd and magnificent Mustang. 

If the Ferrari-swapped Mustang isn’t one of the weirdest pony car builds, this twin-turbo Honda swap custom Mustang must be 

The parade of twin-turbo engine swaps continues, but this time it’s from a much more mundane donor. The beating heart of this 1966 Ford Mustang is a Honda K24 engine married up to a Nissan 350Z CD009 transmission. The result is a ridiculous classic car with an even more ridiculous soundtrack.   

You may have seen strange off-roaders, but how about this off-roading Mustang for one of the weirdest Ford Mustang builds ever?

This Shelby Mustang build is not just weird because it’s hiked up and pretending to be a truck; it is strange because it’s a movie star. In the 1999 recreation of The Thomas Crown Affair starring Pierce Brosnan and Beau St. Clair, a custom dark green convertible Mustang on chunky, knobby tires tried its hand at off-roading. However, it didn’t do so without perverting the looks of a Shelby G.T. 350. Still, MotorTrend says that it is desirable enough that a Michigan man made his own movie clone. 

How about one of the fastest EVs in the world: the custom Mustang Zombie 222

We talked about the odd noises coming from a Honda-swapped custom Mustang, but what about a fully-electric pony car? Texas electric vehicle (EV) builders Bloodshed Motors thought it was an inspired idea and created the Zombie 222. However, the Zombie isn’t a family EV focused on the range. Instead, it’s a 1966 Ford Mustang with figures fast enough to make it one of the fastest EVs in the world. 

The Zombie 222 is a custom Mustang build with all-electric power.
Zombie 222 | Bloodshed Motors

OK, so you’ve probably heard of the Hoonicorn

Ken Block is a household name in car enthusiast circles. As a result, the Hoonicorn is not exactly a secret. Block’s custom 1965 Ford Mustang packs a Roush-built 410 cubic-inch Ford V8 with Garrett twin turbochargers that protrude from its thoroughly liveried hood. According to Garrett Motion, the beast produces over 1,400 horsepower and 1,250 lb-ft of torque and puts the power down via an all-wheel drive (AWD) system. 

The custom Mustang Hoonicorn build is one of Ken Block's wicked weapons.
Ken Block’s Mustang Hoonicorn | Michael Cole, Corbis via Getty Images

If you think that sounds crazy, check out the Hoonicorn vs. The World series on YouTube. The twin-turbo custom classic is a proper missile. Scroll down to the following article to read more about the Ford Mustang!

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Staff Writer

Erik Sherman

Erik Sherman joined the MotorBiscuit team as an Autos Writer in 2022. An admitted petrolhead and an avid motorcyclist, Erik has owned everything from classic cars to motorcycles to modern driver’s cars. Erik also has extensive experience with military and emergency vehicles, ranging from ambulances and fire engines to MRAPs and M-ATVs. Erik is an eager car and motorcycle reviewer with experience covering everything from sports cars to pontoon boats and jet skis.

Erik holds a Bachelor’s Degree in International Relations (IRG) from the University of Texas at Austin and has studied Chinese, Energy, and European Politics at the University of Glasgow in Scotland. Erik’s background is unorthodox; he is a United States Marine Corps (USMC) combat veteran, water survival practitioner, and a former firefighter/EMT. Additionally, Erik is a regular volunteer and former instructor with the American Red Cross (ARC).