The Q12 has Niftech motor blocks.

Edit: sorry, forgot to tell you how to get them. you could try to get your lhs to order them, but calling Niftech direct is the best way. www.niftech.com for the phone number.
He hasn't made any blocks in a long time, doesn't want to, but we have been nagging him to do so. Simply because the Niftech blocks are the strongest available. They are made from 7075 aluminum, which is much stronger than the 6061 used by everyone else.