Another rare displacement I recall reading about (never saw one) was a 409 cid. I cant remember the body name but it resembled an early Impala.

As far a modern technology, the automakers seem to be using litres as identifiers, especially in small block V-8's. We all know the familiar GM 5.0 and 5.7. But now adays we see more of the smaller displacement 4.8 and 5.3 (trucks) . There is a 6.0 GM and I'm not sure if that is a small block or not. Most of GM rear drive V-8 passenger cars are still using versions of the tired and true 5.7, with the Corvette getting a cid change just recently.

I wonder if Ford started it all with the famous 5.0 Mustangs?
I still like the sound of 302 boss though!