Hemi heads on a poly?

From my understanding, talking with alot of the old Hemi guys. The L.a. 318 poly could be changed over, also the 325. Read Tex Smiths book on early Hemi builds. I don't beleave the 354 was ever a poly,its the same block as the 331 and 392. the 240 , 270 were concidered baby Hemis. Another good person to talk with is BoB Walker at Hot Heads. He can tell you pretty much what you need to know. I got everything i needed from him to build my 354 for my Dart.