@ Lars - Yes, I saw that was possible using the Mopar 426 crate engine:

 http://www.carcraft.com/techarticles/ccrp_1203_horsepower_426_hemi_crate_engine/

but I did not see an engine builder that was doing that for an off-the-shelf available option.  Maybe the importer/dealer is doing the boring and stroking?  If so, that's very ambitious "tuning"!

@RC - Cool looking Wrangler!  Yes, I saw that BPE motor before, and 440 ci is pretty close to the 7.3 l mentioned.  I think you said there was a warranty, correct?  Nice!