i had the same horrible experience and its very very very expensive compared to what the vehicle is worth...i got a remanufactured block with everything else new..ended up costing me around $4,500 to fix it.....
everyone i talked to (no offense chopper) told me that without modification to electrical, motor mounts, transmission adapters the only motor was the 3.5 vx motor...
basically they did their research for me and most of the problem was all the connections with TOD, tranny and motor...nothing was a direct swap....
they ended up finding a motor out of california that sold the remanned block for around 2500 i believe with me giving them my *#$*$ed up block...
granted, i replaced basically everything else in the motor that even had a chance of going bad so that i wouldnt have to worry about this for a long time...
if your interested in going this route ill be happy to give you the name of the company in california that has remanned VX blocks..
thats my 2 cents...
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