If you go back to the 40s, you have the Ford 60 flathead V-8. However, the small block V-8 Fords from the 60s included a 260 and a very popular 289 - lots of Mustangs and others used the 289. The 289 was later replaced by the 302. See ya on the water!
come on, guys.... metric units are not that bad. ... My engineering carreer started with the US federal govt, which used imperial units. Then, all of the sudden they decided to go metric.