Well that goes back to what I was told years ago that the 383"magnum" was born by putting the same heads on it as the 440. So by that thinking any 4bbl 383 from 68-71 is a Magnum. So is it just a "Magnum" when the 383/400/440 share heads? Like pre 68 383's had there own head,a 67 383 had its own head,67 440 had it's own head.

And I just wanted to know if Dodge called my 69 383 4bbl/duel exhaust 330hp engine a 383 Magnum or 383 4bbl for my air cleaner!!!LOL
But I love learning Mopar stuff!!!