Check the listing for details. Eagle 104564000 Chevrolet 454 Cast Steel Crankshaft. Condition: New. Listed at 329.99 USD. Chevrolet 454 Cast Steel Crankshaft 4.000'' Stroke 1-Piece Rear Seal External Balance 2420 Bobweight EAGLE SPECIALTY PRODUCTS 104564000 Features:Eagle's commitment to quality and service has resulted in customer loyalty and satisfaction. This, in turn, has fueled rapid growth over the years. Eagle added crankshafts to our lineup a few years later as well as expanding our offerings in connecting rods. Continuous design improvements and improvements in materials and manufacturing techniques have resulted in Eagle being the largest and most respected aftermarket connecting rod and crank manufacturer in the industry. We never stop researching ways to make our products lighter, stronger, more efficient to manufacture, and more diverse. When you stop moving forward, you.