I got the chassis done on my car 70 duster and I had a BBC in it for a race and it died (stock bottom end block decent heads) So I am looking at doing a new motor and have been weighing out both options Chevy vs Mopar. For the chevy short block I can get a aftermarket block eagle rotating assembly and new roller cam and lifters for $6400 shipped to my door. Just bolt heads on it and go.

But I wanted to put a mopar engine back in it and I dont want a stock block or 440 source crap stroker kit I have seen 2 fail in my uncles car (assembled by Rex Hutchinson) So that seems to leave me with a world block for $3000. Are there any good builders putting these short block together that are comparable to what I can get by going Chevy? I am willing to pay a little more but not $5000 more.
sorry for the long post but its frustrating searching around these websites for the parts.