I'm looking at the TD27T nissan engine, but they have to be imported. 440 lbs 154 ft lbs of torq at 4000 rpm and 98 hp. That's a 2.7 L turbo.
i'm lookin to put in a diesel as well, they also have a 4.0 liter v6 diesel, dont know the power rating. theres a web site i'll try to find again that sells used diesel engines of various mileage/price, all are overhauled with weared parts replaced with brand new ones and all cleaned up. 252000 miles on a 2.7L at 600 bucks, 72,000 miles for 900.
http://www.google.com/search?hl=en&q=nissan+diesel+engine&btnG=Google+Searchlink to the different engine sites. woodfin is the one with the cheap engines above. but check all of em out