The engine in the Ferrari 365 GT4 BB was the first flat-12 engine installed in a production Ferrari. It had a displacement of 4,390 cc, and its development was supervised by Dr. Ing. Giuliano de Angelis. The design was derived from the 3.0-liter boxer-12 engine (Tipo 001) by Mauro Forghieri for the 1969 Ferrari 312B Formula 1 car.

In a classic boxer engine, pairs of opposing pistons move in opposite directions. However, Mauro Forghieri clarified that this engine should not be called a boxer engine, stating it was a V12 with a 180° angle between the cylinder heads. The engine featured double overhead camshafts per cylinder bank, a change from previous Ferrari 12-cylinder engines, which used chain-driven camshafts. The engine produced 360 horsepower at 7,500 rpm and allowed the car to reach a top speed of 300 km/h.

The 365 GT4 BB was Ferrari’s first high-performance mid-engine GT and paved the way for the 512 BB and BBi, though their engines were less aggressive. Between 1973 and 1976, Ferrari built 387 units of the 365 GT4 BB.

365 GT4 BB

Year 1974
Paint color Rosso Corsa
Interiors Black Connolly Leather
One of 387 units produced
Originally delivered in France
Well documented history
Complete engine overhaul by Charles Pozzi