I would think this block is for the person that is looking to buy a KB tall block now and is looking for a little more CI. It looks like it is built on what exists now. A 5 inch spread bore block, how many are going to be sold compared to what is offered as a hemi block on the market now. How long did it take for KB to even have blocks again and how many now are manufacturing a cast iron block for a Gen 2 hemi? If people go to an Alan Johnson block then it would be starting new with a complete parts list to buy. So if you were in the market now for an aluminum block and had all the parts from a past build to go on this block then one of the 10 blocks being cast might work for you.