Personally, I think that's an old add. But I do agree, although expensive for a steel block, I agree it is worth the money. The last time I spoke with them, they wanted to build the engine, not just sell the block. I'm going to guess they are out by now.
I think your right, I remember that add back when the Koleno blocks were being made.
I am pretty sure the "k-p 440" are koleno blocks, note the bear paw marking. same as the blocks on here http://www.kolenoperformance.com/index.html. So sadly they aren't being produced anymore.
