Besides Jasper, is there any other that comes highly recommended with good warranty? ive found S&S out of pacific north west(5/70k) and another out of Jersey with 3/70K?

ATK has been around along time http://www.atkvege.com/content/

I have actually put in quite a few auto zone engines, they have a 3 yr/ unlimited mile warranty

I work for a fairly large fleet management company. We use Jasper, Dahmer or RMP. With as many parts I've had to get 2-3 of from Autozone before getting one that works...I would be hesitant to go there.

Well, they buy from different places, everyone i've gotten is from ATK, sold through the Zone. Never had any problems. I had one with an exhaust leak one time, they paid me my shop rate, plus gave me the parts to fix it.

Edit: That was a complete diesel engine with manifolds and turbo on it.