Just spotted this ad on Ebay for the "one-of-one" Ford 427 Hemi Thunderbolt. Can someone shed some light on this engine? This is a revelation to me, as I have never, ever heard of this powerplant - at least never of anything like it making it out of Ford's engineering shop.

http://cgi.ebay.com/ebaymotors/Ford-...97834648QQrdZ1