Mac, did you look at the weblink to Bob's "Toe Truk" '48 Ford? The engine block that sits on the deck was a DROPPED LS7 block, with a crunched corner, bought the same way...
http://lowdownhotrods.smugmug.com/Wh...7882&k=ZPQprmw (page 7)
...and another LS7 under the hood...with a 6L90E 6-speed Automatic...which isn't a factory-available combo...
BTW, LOWDOWN HOT RODS is not me/mine. I had the name long before they opened...