does any one know were there is a engine block casting number decoder the as i think i read it was D8VE-8015-A3A2 then there was a big Z i know its from 1978 which depresses me and im kinda pissed so im trying to find what vehicle it came from?

 

You're right, it is a '78. It's out of a Lincoln.
Try calling a Lincoln Mercury dealer, if you don't get any more bites on this.

Good luck,