where to buy small block to slant adapter?

Wonder how many of those adapters are floating around?
I don't know but some a100 's with a slant and auto had em from around ohhh 66 67 i think. I had a 67 with that and tossed it when I put in the v8 :oops:
then there is the trucks (I have not found a year range on them yet) and haven't heard what year it starts and stops at, but I'm still looking and hope to find one with the crank adapter with it. I want a 4 speed auto in my convertible, I don't need it but WANT it. I have a later model 904 that Im going to check out and see if it's a lockup or not,I'll use that setup for now . that is whenever I get around to installing the engine and trans back into the car