the '69 383 was kinda donated...by my brother Weeb, and the cubic inches have a little sentimental value.
I agree on the 440/6 ....but the 383 is a great piece for this build...and as you know, it is nice to be a little different. In my day, a lighter, a good revin' 383 would stay right w/ the 440's...until the big end anyways.