Would like to give my OPINION and some thoughts about producing the iron Champion block.
This is in NO way intended to be dis-respectable to Tom at Champion who I know and like.
The first "issue" is that there will not be enough demand for this iron block. Yes, lots of talk from wanna-bees behind a computer, but where are they when it comes time to put up the $$$$? Probably will decide $3000+ is too much to spend for a replacement V-6 block, so back to their trusty 109.
Machining an iron block is much more "messy" and time consuming that doing it in alum. Costs for material and labor have increased a lot since Tom first started this project. I doubt that with material, labor and hardware costs what they are now, this block can be produced and sold for less than $3000?
So this brings us to "what is the market for this block". There have been ~100 alum blocks sold, and most of them NOT in the Buick community. Lots of customers love the alum block for their specific application in a sand rail, street rod, round track and other uses because it is compact, LIGHTER than the iron stage block, and easily repairable if damaged.
I do not think that TA has recovered their development costs on the alum block, much made less any profit on it.
The serious Buick racers that are now using alum blocks would not be players for a new iron block. Some of the few remaining ones may want to have a new iron block?
Further, we have seen in the past year or 2, many of the "heavy-hitter" Buick racers have left the V-6's in the garage, and moved on to V-8's.
If the market for the iron block is less than 100 units, it probably will not cover development expenses.
So the "picture" as I see it now, is not rosey. If it does come to the market however, I sincerely hope Toms sells lots of them!