{"product_id":"4-125-inch-stroke-forged-4340-steel-crankshaft","title":"4.125-inch Stroke Forged 4340 Steel Crankshaft","description":"The Eagle Specialty Products 440041256000 crankshaft is engineered for demanding, high-performance applications. Constructed from forged 4340 steel, this internally balanced crankshaft features a 4.125-inch stroke and a two-piece rear main seal. It is designed to accept a standard balancer bolt thread size of 7\/16 in.-20 and has a main journal diameter of 2.649 inches and a rod journal diameter of 2.100 inches.\n\nIt features a non-twist forging process, multi-stage heat treatment, and is stress-relieved and shot-peened for enhanced durability. For improved oiling, the oil holes are chamfered, and the rod and main journals are strengthened with a .125-inch radius. The journals are precision-ground and micro-polished to a surface finish of less than 5 R.A. The target bob weight is held within +\/- 2 percent to minimize balancing time during engine assembly.\n\nKey specifications include a 4.125-inch stroke, internal engine balance, and a two-piece rear main seal style. It is important to note that this crankshaft requires narrow bearings and does not include rod or main bearings. The total weight of the crankshaft is 57.000 lbs.","brand":"Eagle Specialty Products","offers":[{"title":"Default Title","offer_id":52872897331512,"sku":"EAG440041256000","price":914.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/store.motormia.co\/products\/4-125-inch-stroke-forged-4340-steel-crankshaft","provider":"MOTORMIA","version":"1.0","type":"link"}