That is the old "improved design" from a couple years ago. Big difference when you just look at the oil pan and skirt on the motor posted above.
) a new AM General 6.5 would be a heck of a deal for my K5. The AMG block would (only) cost me about 3.5k Euros and would be a tremendous starting base for any upgrades & more power for my good old K5. I already have some offers for my old 6.2 and 5.0 smallblock, (about $ 2500 for both engines (!) + adding all the parts I already have bought for my old 82 6.2 which I could sell for quite much money, a new AMG block really is affordable for me....
The only thing I do not know is how I can get this thing into my K5, I read somewhere, that the bottom of these engines makes it impossible for me to get it into my k5, but I do not know for sure.




. That export of that particular engine is restricted by ITAR (International Traffic in Arms Regulations). It is illegal for an American individual or company without certain licenses to export that engine because it is primarily for use in the HMMWV. This is silly, I know, but it is the way things are. 

@Max:
are you sure that a p400 would fit my truck? Several guys on the diesepage/dieselplace said it would't fit without a custom oil pan?
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As far as picing is concerned: I found out that an 6.5 Optimizer would cost me about $ 5600 , a p 400 roughly $ 6000.