A friend once told me that "Chrysler made their forged cranks with a rotary axe" and it is pretty obvious what a forged crank looks like compared to a cast version of course the OEM cast models are smaller, lighter and cleaner looking than the OEM forged units and because of that they require external balancing. Now the spendy aftermarket forged pieces are a lot nicer, but they are also at least 40 years newer. Build your motor around the crank and you won't go wrong