Starting in 1922, many Bugatti engines used three valves per cylinder actuated by a single overhead camshaft (SOHC) and multi-valve engines continued to be popular in racing and sports engines.
Many Bugatti engines used three valves per cylinder. This was starting in 1922. This cylinder was actuated by a single overhead camshaft (SOHC). Multi-valve engines continued to be popular in racing and sports engines. This was starting in 1922.