Ford was building Aluminum block, 32 valve, DOHC engines in the early 40's.
Sadly they never put them in any cars, at least not here.
This looks like the ancestor to the Duratec engine used today:
https://www.youtube.com/watch?v=rt5uSx3eFYU
https://www.youtube.com/watch?v=W2ghTjFtNPo