Seems Fiat dont seem to want to know (or worse, they dont want the blocks around)

There are mega blocks out there, kolenos, and even the thicker mains early 70's 400's also, perhaps they need to be used as a starting point in getting any B/RB happening.

And even though the SBM is a good platform in theory (bore space, cam height etc better than SBC)

The greater demand seems to be for B/RB, and something along the lines of what world/MP and Koleno were doing... iron, reasonable price, siamesed, 4 bolt, and the majority of applications would see it wanting to hold under 1500 HP without it breaking.

It would probably have to be out of china to be viable.

Thats my 2c.

I have absolutely no experience in foundry stuff so wouldnt know where to start myself, i know there are people out there who'd be decades ahead of a newbie with knowledge of whats involved.

Ive read something from a certain SOURCE who said why the 440 sauce blocks never happened, the upfront order and hence investment that was requested from the USA based foundry was in the millions, with alot of blocks needed to be ordered and paid for up front. Most people, just about all really, wouldnt want or need to take that chance.

Perhaps it might not be like that out of china regarding initial investment and order quantities, and tech is improving re. scanning pre-existing blocks, its not like much needs to be designed from scratch if a mega block is profiled for example.

Anyway ive stumbled across these pages in my travels, one seems to be the dart knock offs which are speedmaster / procomp.