Sniper, that's interesting info.

Seems a bit crazy to me that there were that many different displacements.
Then again, the various Hemi engines came in a wide spread too.
Note the "big" engine is more oversquare, and the minor differences in power output among the 4.

Same-year Chevy V8 had to be a more cost-effective program being all 265 CI.
A few different power ratings, but all more similar.