Slant 6 parts

Owning old cars, you kinda have to be your own parts guy.
I walk into the local Autozone / Advance Auto / NAPA with the part number of what I am looking for. I don’t go through the BS of: make model year engine transmission,,, I just say,,, this is what I want. End of story.
I usually price shop between those three plus RockAuto when making purchases, unless it is something I absolutely need that day, in that case I leave RA out.