nisileighty

Hi there, I'm doing the Z32 brake conversion on my 1993 240 coupe, and I'm having some trouble with the master cylinder. I went to my local oreillys and picked one up, but it has no Nabco, Tokiko, or Nissan markings on it. I'm aware that it should have these markings to be from an actual Z32 rather than a aftermarket replacement part. Rather than any trademarks, I do have the numbers 30173-AC on the body of it. If anyone could tell me the size of this master cylinder it would be a great help, along with what flair fitting I need for the middle hole. Any help is appreciated. Thanks!