buddha - FWIW, I had KC price out a 327/331 R302 block completely machined and assembled with top-self internals - ended up around $5,000.
What impressed me the most was how they (Jimmy & others) were very patient with me and took time to listen to what I wanted to do with the car, how I was going to drive it, and explained everything to me.
If I only had an extra $5,000 laying around I would have ordered it!
They seem like a top-notch shop.
E
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1991 5.0 LX Coupe - 38,000 miles
13.17 @ 106.14 mph w/ 2.138 60'