Trick Flow Hydraulic Roller Lifters

If you dig around a little bit you'll discover that Howard's doesn't make those lifters either. My guess is that they are made by Morel.

As for why it took 3 months to get them I can only guess. Morel might have been out of stock and so everyone just had to wait or there could be some other reason.
They are Morels, and not what Trick Flow used to sell. When I got my my backorder, I knew at a glance what they were. I have a shelf full of those lifters, and the oil band is a problem with larger lobe lift cams. It will uncover the lifter galleys and low oil pressure is the result.