Powerful 476-Powered 1971 Dodge Demon Heads to Auction

This modified muscle car features a 476ci Mopar R3 V8 and pro-street styling.

Apr. 1, 2026 at 4:26pm

This 1971 Dodge Demon has been extensively modified with a 476ci Mopar R3 V8 engine capable of producing up to 865 horsepower. The car features a host of performance upgrades, a custom purple paint job, and pro-street styling cues like a scooped fiberglass hood, side-exit exhaust, and Billet Champion wheels. The Demon is now heading to auction after being purchased on Bring a Trailer in 2025.

Why it matters

The Dodge Demon was a high-performance variant of the Dart model, and this heavily modified example showcases the potential of the platform when equipped with a powerful Mopar V8 engine. The pro-street styling and extensive list of upgrades make this a unique and desirable muscle car for collectors and enthusiasts.

The details

The 476ci Mopar R3 V8 engine has been enhanced with a Comp Cams custom camshaft, CFE Racing Products cylinder heads, T&D Machine roller rockers, and a Holley 1,150-cfm carburetor. The engine is paired with a Coan Engineering-modified 727 three-speed automatic transmission and a Strange Engineering 9-inch rear end with a Detroit Locker limited-slip differential. The chassis has been upgraded with a Reilly MotorSports AlterKtion K-member, Street-Lynx rear suspension, and Wilwood disc brakes. Exterior modifications include a scooped fiberglass hood, Demon 476 badging, and a side-exit dual exhaust system.

  • The car was purchased on Bring a Trailer in February 2025.
  • The vehicle underwent a refurbishment years ago by Bruce Harvey's Pro Comp Custom in Pittsburgh, Pennsylvania.

The players

Bring a Trailer

An online auction platform for vintage and classic cars.

Bruce Harvey's Pro Comp Custom

A custom car shop in Pittsburgh, Pennsylvania that performed a refurbishment on this Dodge Demon.

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The takeaway

This heavily modified 1971 Dodge Demon showcases the potential of the platform when equipped with a powerful Mopar V8 engine and extensive performance upgrades. The pro-street styling and unique features make this a desirable muscle car for collectors and enthusiasts.