08/08/2026
The Ford Bucci 3000 was one of the most unconventional racing engines ever associated with the Indianapolis 500. Developed for the 1973 season by legendary engine builder Smokey Yunick in collaboration with Ralph Johnson, the 3.0-liter twin-turbocharged V8 was commissioned by entrepreneur Vince Bucci as an alternative to the dominant Offenhauser engines of the era. Based on Chevrolet small-block architecture but built specifically for Indy-style competition, the engine represented a bold attempt to challenge established racing technology through innovative engineering.
Displacing 207 cubic inches (3.0 liters), the aluminum V8 featured dual turbochargers, mechanical fuel injection, and a lightweight racing design intended to deliver exceptional power while taking advantage of Formula rules that favored smaller turbocharged engines. The Ford Bucci 3000 made its competitive debut at the 1973 Indianapolis 500, where it qualified 26th in the hands of driver Jim McElreath. Although turbocharger problems forced an early retirement from the race, the engine demonstrated impressive potential. Plans to return in 1974 were ultimately abandoned after persistent fuel mixture and development issues prevented the project from reaching full competitiveness.