I emailed 3 different places selling 455 crankshafts on Ebay and asked what the exact weight of the crankshafts was. GoFastStuff says the Eagle crank weighs aproximately 70 lbs. Someone selling a 103 N crank says he thinks his weighs 75 Lbs and says he knows it's over 70 lbs. I will post what the person selling a CAT crank says the crank weighs when I recieve the info.