Don't get me wrong, I like tinkering with these things as much as the next guy. I like my 2001 with the 5.3 and will probably end up modding it.

I just got the itch for a new truck and had this "great idea" to order what I want with a kickin' motor already in it. (So much for great ideas) If I have to swap an engine to get what I want, I will keep my present truck and save the money. Meanwhile, GM will miss a potential sale. Heck with the money I'll save, I could do pretty much anything I want.