I just happened to call Ken today and he said the block is basically done and cam bearing installed but they are waiting on sleeves. The supplier that they get the sleeves from is backed up or something.

He said they buy "blanks" and then machine the ID, OD, flange, o-ring groove etc to the customer specific block.

He said they typically use a 4.700" sleeve and are good to 4.530" bore, if I understood him correctly.

I'm starting out with 4.360" bore but they are using the same 5.700" sleeve so I can go to 4.500" later on.

He said he had another source he was going to get a few sleeves until the main supplier catches up so I'm guessing it will be another 2 weeks..