Hey James YOU are lucky SOB stealing all the good motors on 50% off day at the yards!  You probably know more of this $hit than i do. LOL
I'm clueless about the old v8s, although I CAN spot a nailhead.  I think.  I actually coulda used this link the other day.  I was at an auction and there was a marine buick v6 on a crate.  All I could tell was it was even fire.  I was thinking I was gonna score a filleted crank or something.  Did a quick google search on the casting number and found that it was something totally useless to anyone but an old jeep lover, was a spare for the old jeep out behind his shed.  Without my phone I probably woulda bought the thing.  I run across junk in people's sheds and yards ALL the time.  Again, this is a great bookmark for my phone.  Along with the olds FAQ.  I know my MOPAR pretty good and don't care about any of the rest!