Eagle Crankshaft, Forged Lightweight, SBC 350, 3.500, 4350350057LA

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 47-49 pounds. Eagle Lightweight crankshafts are rated to support up to 850 horsepower.