330
The 1960 400 Superamerica replaced the previous model's Lampredi engine with a 3967 cc Colombo. It diverged from the standard 58.8 mm (2.3 in) stroke with a 71 mm (2.8 in) stroke and 77 mm (3.0 in) bore. Output was 340 to 400 hp (298 kW) with triple Weber carburetors.
Although the 1963 330 series also used a 3967 cc engine with the same bore and stroke as the 400 Superamerica, this engine was quite different. It used a wider bore spacing, paving the way for future displacement increases. The spark plugs were moved and a new water pump was used. The dynamo on the prior versions was replaced by a true alternator. In the end, 300 hp (223 kW) was on tap.
Read more about this topic: Ferrari Colombo Engine