Daze of October said:
And here's some other trivia! Chrysler did
NOT have the first hemispherical-headed engine, Ford did! Did you know that Ford and Chevy both offered 427ci engines?
Ford first offered a hemi in 1947.
Hemispherical cylinder heads have been used since at least 1901; they were used by the Belgian car maker Pipe in 1905 and the 1907 Fiat 130 HP Grand Prix racer.
The Peugeot Grand Prix Car of 1912 and the Alfa Romeo Grand Prix car of 1914 both were four valve engines also, Daimler, and Riley were also using hemispherical combustion chambers.
Stutz, beginning in 1912, used four-valve engines, conceptually anticipating modern car engines.
The BMW double push rod design, taken over by Bristol Cars, the Peugeot 403, the Toyota T engine and Miller racing engines are other examples.