Mine include a complete '69 standard bore 340-6 whose casting numbers don't show up on any list I've ever seen. All I can think is that it was a dealer crate motor or some kind of high nickel block. Though times have been VERY hard since Hurricane Katrina took most everything else I had, I might be inclined to sell it some day but it would have to be a crack-induced offer to convince me.
I'm not gonna go into details about the 8 3/4 stash. :-D