I had some friends that spent many years junking cars. When it comes to crankshafts, those guys made more money if those cranks were broke to shorter then 2' long pieces. It was common practice to break all 6 & straight 8 cranks in 1/2. They accomplished that by setting rocks under both ends of a crank, and throwing another crank against the middle of the one supported by the rocks. Normally, one or two tosses would result in two broken cranks. Those guys (one happened to be a Ford fan, and the other a GM fan) both commented that they loved it when the Chrysler flathead 6 motors came in because they would use the Mopar crank as the throwee, usually the Mopar cranks would break anywhere between 2 and 3 of the other brand cranks before it broke. You can't make this stuff up. Gene