This 1971 Dodge Demon is anything but subtle—a full-blown pro-street machine that channels raw Mopar aggression into a purpose-built street and strip performer. Extensively modified under prior ownership, this Demon has been transformed from its humble origins into a fire-breathing big-inch powerhouse, now finished in a striking purple inspired by the legendary Plum Crazy and backed by serious hardware throughout.

At the heart of it all is a 476ci Mopar R3 V8, a professionally built engine pushing up to an astonishing 865 horsepower on pump gas. Fed by a Holley 1,150-cfm Dominator carburetor and breathing through ported W9 cylinder heads and a Mopar M1 intake, this setup is designed for maximum output. Internals from Callies, Diamond, and Comp Cams ensure it’s powerful, while an MSD ignition system keeps everything firing with precision. The result is a brutal, no-compromise powerplant that defines the car’s character.

Power is delivered through a Coan Engineering–modified 727 automatic transmission and down to a Strange Engineering 9-inch rear end with a Detroit Locker and 4.10 gears—an ideal combination for hard launches and relentless acceleration. A side-exit exhaust system ensures the soundtrack matches the performance, delivering an aggressive tone that leaves no doubt about what this Demon is capable of.

Visually, the car makes an immediate impact. The fiberglass hood with a prominent 5-inch scoop, black striping, and Demon 476 badging give it unmistakable presence, while its mini-tubbed stance allows for massive rear rubber. Billet Champion wheels wrapped in Mickey Thompson front tires and M&H drag radials at the rear reinforce its pro-street intent. Underneath, a Reilly MotorSports AlterKtion front end and Street-Lynx rear suspension, paired with coilovers and four-wheel disc brakes, provide modern handling and stopping power to match the engine’s output.

Inside, the cabin is all business. Bolstered bucket seats, racing harnesses, and an eight-point roll cage set the tone, while AutoMeter instrumentation—including a 10k-rpm tach—keeps the driver fully informed. A Precision Performance Products shifter and Tuff-style steering wheel complete the cockpit, delivering a focused, driver-centric experience that feels every bit as serious as the drivetrain.

Showing just 500 miles since completion, this Demon represents a freshly built, high-horsepower machine that’s ready to be enjoyed immediately—whether on the street, at shows, or down the strip.

For a buyer who grew up in the golden era of American muscle, this car hits on every level. It’s the kind of machine you dreamed about back when big blocks ruled Woodward Avenue—only now it’s built better, faster, and louder than anything you could have had back then. If you’re looking for a no-excuses Mopar that delivers adrenaline, presence, and old-school attitude in one uncompromising package, this Demon more than delivers.