 A similar intake duct styling was applied to the five SP-series Ferraris in 1961 and 1962 that were also designed by Carlo Chiti, and then again over forty years later to the Ferrari 360.Ferrari started the season with a 65-degree Dino engine, then replaced by a new engine with the V-angle increased to 120-degrees and designed by Carlo Chiti.A V-6 engine with 120-degree bank is smoother at producing power because every 120-degree rotation of engine crankshaft produces a power pulse.