Idler and Pitman

Ok this subject has been beaten to death but I'm still confused. (go figure) I have a 68 Dart converted /6 to BB (Low Deck) I'm using the /6 k-member and am running into issues with idler arm header interference. I purchased "BB" pitman and idler arm. After looking at Rock Auto they have the same part # listed for small block and BB. Is that correct?