Its a small operation, no-name. They have learned from their past mistake of announcing before delivery about engines, so if you REALLY need a 55 I'd burn some incense and talk to a bishop or two. I'm not privy to an actual release date, but I know that they will have it out as soon as their limited resources allow it. It's just too good of an engine to NOT produce.

Try calling them at their contact number, and LEAVE A MESSAGE. They do try to return calls, but "friends" (like me. . . ) for some reason have a lessor call-back frequency than new customers.