The new VCT HEMI is a bad a$$ motor. 390HP from a 345ci block is pretty good, plus it pushing well over 400lb-ft. That's more torque than most of the first gen diesels were putting out in P/U's.:tttt:

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Found it... Cummins 5.9L CR motor in a 4 Door JK.

American Expedition Vehicles - Aftermarket Jeep Product and Conversion News Ultimate Adventure 5.9L Cummins Turbo Diesel Wrangler JK!

Yeah they did that for Petersen's 4wheel mag. But it was either them or BOR that put done the 3.0 and 2.8 CRD engines too in the JK and TJ.

A few years ago BOR also did a 4BT/NV4500 into a YJ. Turned out very nice.

Seen an episode of xtreme 4x4 the other day. They were just finishing a Hemi swap on a TJ:

Xtreme - Episodes

I'm not opposed to the 6BT in there just for kicks...it definitely has a ton of cool factor. I think the 6BT is more of a Humvee/H1 candidate as far as practicality goes, though. Even the 4BT would be a bit heavy for the JK platform, IMO. I'd really like to see a sprinter/MB I5 diesel in one of these JK's, I think that'd be perfect for a trail rig.

Dodge and their SRT program seem to have done their homework with the Hemi, these things are turning out to be quite impressive.

The problem with the MB Sprinter engines is they're weak. I mean, less than 200HP isn't gonna give you a lot of wheel speed in a hurry like you often need. Wonder how easy it is to bomb one of them.