Need some advice on choosing an engine

I don't know why the 383/3.75 ain't a more popular package. When done you got a slightly smaller bore and cid than a 440 but it's smaller dimension and lighter internally and externally with parts nobody wants.

If you think of a 383 in small block terms. Like is someone made a heavy duty 225 lbs 4.250" bore, deep skirt block that could high hp loads, and tall deck so it could be stroked to 500 cid people would be tripping over themselves to buy one for thousands of $$$$. But call it a 383 big block nobody wants one lol.