1970 340 Balance Problem...Bottom Line

Perhaps I was wrong calling him the #1 Mopar guru (that would be Galen Govier), but we all would have to agree that he is one of the most knowledgeable. The only reason I posted this info was to show Pastortom1 the production time schedule between the two cranks. Going back to my source and checking further I find that Shepard states that forged cranks were phased out of production A engines by the end of 1974 and replaced by cast cranks. With that being said, I'm sure you could of bought a 1973 Cuda or Duster 340 and received a cast crank one day and a forged one the next. I know that my 1973 340 Cuda had a cast one, but Chrysler being Chrysler most likely mixed them in production until inventories were where they wanted. Who knows? I personally think it sounds like that Pastortom1s rebuild was most likely not balanced correctly, but thats just pure speculation on my part. Mike