Actually callies has the original blue prints for the R3 block and when they are done with the big blocks the plan is to reproduce the R block. This was originally told to me by the parts manager at a chrylser dealership and confirmed by callies themselves, it's actually their sister company that makes the blocks. They probably won't be cheap but it will be another option. I still don't see why everyone seems to pass on the ritter block, Kent has them sorted and they are not anything special to machine to get them where a stock x/r block are. I'm sure their will be those that bring up old blocks ect ect but I have seen too many build them with nothing special and there is a wealth of info out there if you look, I would have gone that route if I didn't already have a virgin R block.
