Mopar Performance has always been the red-headed step child of the corporation. When Galaxy was casting blocks the bean counters would never let MP order more then 50-100 blocks at a time. This caused a whole #%$@load of problems and eventually drove production into the toilet. There's a huge lead time to get everything at the foundry and machine shop up and running, and the starting and stopping of production doomed block supplies to never be stable and created all of the shortages seen over the last 25 years. This same problem killed the World blocks.

A similar problem existed with Koleno blocks, which were being machined by Roush. Roush's CNC machines run non stop, and after Koleno brought them a couple blocks at a time to machine, Roush had to quit doing them as the set up time and expense to get those huge CNC machines programmed and tooled up only to run a few blocks made no sense. Roush was looking to do a trainload, and Koleno showed up with a pick-up truck full.

In the end, the lack of a huge market and the resistance of MP to warehouse real numbers of blocks is the underlying issue that I don't see getting solved. No foundry wants to get a line up and running to cast 50 blocks, shut it all back down until MP sells it's inventory and reorders 50 blocks again months/years later.