being a Mopar person and enjoying the simplicity of their engine lineup many times i've listened to a Ford person and walked away shaking my head. Mopar small blocks: 318 and 340. 273 was early and went bye-bye. 360 was smog 340. Mopar big blocks: 383 and 440. Hemi was heads stuck on 440. there, done. Ready to dive into Fords. Here's Lincoln Y Block page http://en.wikipedia.org/wiki/Lincoln_Y-block_V8_engine not interested in Y blocks but see where they were replaced in 1958 by MEL and FE engines. now we're getting someplace!