This may be a repost since I can't read the board as much as I used to, but here is an intersting page about the worlds most powerful turbocharged two stroke diesel engine.

The displacement comes out to 1,556,002 cubic inches (25,480 liters) for the fourteen cylinder version.

100 KHP and 5 MTQ at about 100 RPM is what I would call GRUNT.

http://www.pureluckdesign.com/other/rta96c/

Check out the crank and journals on this mofo.