there should be 2 holes in block where you can bolt the filter adapter to it. it is a seperate piece you can take it off your old block if you still have it or get one at the dealer i would check block to see if the holes are there i am not sure if you are saying that there is no holes to bolt it to. you do have a bad one if there are no holes to bolt the adapter to.
I got the oil filter adapter from the dealer (PN 3952301). There is a pressure release valve as part of the casting. Does it matter what orientation should be when bolting this to the block, and should there be any sealant used? (I think not because there is a tiny ridge that protrudes all around the casting. I thought I'd locktite the bolts in. Does anyone have recommendations for installing this?