Engine decode

[66BigBackWindow]

I have searched the FAQ section and the forum and am still confused on reading an engine code. My 66 did not come with the original engine. I was told it is a 283 and the code on the front of the block is V0930DE. From what I can tell using the sites that explain it is that is was built in the Flint Michigan plant on Sept 30, of what year who knows? The DE code seems to be either a 1958 from a full sized Malibu? Yeah right, a Malibu in 58? or a 62 from body code A or X. Or it could be a 307? What am I missing and where can I find out what year the engine was manufactured and less importantly, what it came out of? Did I miss something? Is there another source or number on the block I need to look for? Thanks folks.