I dunno exactly how many years they made them either, but finding one's like looking for hen's teeth. If you found a Chevy 400 for 350 bux, and it's not cracked, snatch that bad boy up.As far as other motors, well, you know, ehh...errr... it would be more of a pain, but there ARE a few other manufacturers out there that make them......I toyed with the idea of putting a 5.0 in one.The idea pretty much died right there, but it crossed my mind :mrgreen: