I think your friend is refering to the older Isuzus which did have GM v6 at one point. The newer Isuzus use their own engines which have nothing incommon with the GM ones that were used. Probably your best bet is to get a used engine. http://www.allhyundaiisuzuparts.com/ is probably a good bet but shiping will be an iffy. My buddy got a mirror from them used which was hundreds less than the dealer wanted. Good Luck.
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