Eagle Crankshaft, Forged Ultra-Light, SBC 350, 3.450, 4350350057FW

These lightweight forged 4340 steel crankshafts from Eagle Specialty Products are great for high performance engines wanting quicker revving engine. They feature non-twist forging, go through a multi-stage heat-treatment process, and are stress-relieved and shot-peened. These cranks are X-rayed, magnafluxed, and sonic-tested, so you know you're getting a top-quality piece. Each crankshaft has chamfered oil holes for improved oiling, a .125 in. radius on rod and main journals for increased strength so chamfered bearings are required. All journals are precision-ground and micro-polished to less than 5 R.A. A target bob weight of +/- 2 percent greatly reduces balancing time. Average crankshaft weight is 44-45 pounds. Eagle Lightweight crankshafts are rated to support up to 650 horsepower.