In my opinion, if you plan on driving it, a Gen III is the only way to go. I purchased my "New" 2005 5.7 LX (car motor) for 3K in the crate. Of course there are a few additional items you need like alternator, different oil pan, exhaust, but you will need that no matter what you build. The motor will still utilize the MDS along with an overdrive automatic, this car will have 350hp and should get 25mpg on the highway all day long, Let's see you do that with a 440.
