Petty's Garage Creates 727-HP Hellcat-Hunting Ford Mustangs

Jason Siu
by Jason Siu

Petty’s Garage has created a highly modified Ford Mustang GT King Edition that can have up to 727 horsepower.

That peak power isn’t by coincidence, since the Dodge Hellcat models have 707 hp, meaning Petty’s Garage’s creations were built to bring “hell for some cats,” as the company says. The custom Ford Mustangs will be offered in three editions: King, King Premier and King Premier convertibles. The standard King coupe will be limited to 243 units, while the King Premier coupe will see only 43 produced. The most limited of the three models will be the King Premier convertible, reserved for just 14 owners. Those interested can order the cars through a local Ford dealership.

Each model starts with a Ford Mustang GT before Petty’s Garage adds a Ford Performance supercharger to the 5.0-liter V8 engine. Adding 235 hp, the supercharger brings the standard King model up to 670 and comes with a three-year, 36,000-mile warranty. Other modifications include custom engine calibration, a cold-air intake and a MagnaFlow exhaust. For those who want to conquer some Hellcats, a supercharger upgrade is available to bring performance to 727 hp.

SEE ALSO: Eight Custom Ford Mustangs Invading 2015 SEMA Show

The Ford Mustang GT King Edition from Petty’s Garage will start from $67,495 while the King Premier has a $90,495 starting price. Justifying the larger price tag on the King Premier version are different HRE wheels, a big brake upgrade that includes six-piston front calipers and four-piston rear calipers with two-piece rotors. Inside is leather-trimmed interior while the exterior gets a BASF custom tri-color stripe package featuring iconic Petty blue, red and white stripes.

Options for all three models include wheel bushings to minimize wheel hop and coilover racing suspension. Standard are HRE wheels in a 20×9- and 20×10-inch variety paired to Continental Extreme Performance summer tires. Extreme-duty TrakPak Ford Performance halfshafts along with three-way adjustable front and rear sway bars are also outfitted to every vehicle. The rear axle also receives an upgrade.

“I’ve always liked the look of the Mustang, and the 2016 model gives us a great base car to work with,” said Richard Petty. “These new King edition Mustangs are pretty much the way I’d build my own. They are great fun to drive, and have a signature single exhaust.”

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Jason Siu
Jason Siu

Jason Siu began his career in automotive journalism in 2003 with Modified Magazine, a property previously held by VerticalScope. As the West Coast Editor, he played a pivotal role while also extending his expertise to Modified Luxury & Exotics and Modified Mustangs. Beyond his editorial work, Jason authored two notable Cartech books. His tenure at saw him immersed in the daily news cycle, yet his passion for hands-on evaluation led him to focus on testing and product reviews, offering well-rounded recommendations to AutoGuide readers. Currently, as the Content Director for VerticalScope, Jason spearheads the content strategy for an array of online publications, a role that has him at the helm of ensuring quality and consistency across the board.

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