{"product_id":"4340-steel-crankshaft-3-622-stroke","title":"4340 Steel Crankshaft, 3.622\" Stroke","description":"The Lunati Signature Series crankshaft is a high-performance component engineered for LSX engines, including LS1, LS2, and LS6 applications. Manufactured from aircraft-quality 4340 certified steel, this forged crankshaft offers exceptional strength and durability for both high-performance street use and demanding race applications. It has been proven in builds exceeding 1,500 horsepower.\n\nKey specifications include a 3.622-inch stroke, 2.559-inch main journals, and 2.100-inch rod journals. The crankshaft is designed to work with connecting rods measuring 6.125 inches or longer. It features a 24-tooth reluctor ring for engine management systems. The shaft surface finish is Grade 5 RMS or better, with journal radii ground to .140 inch and exceptional roundness within .0001 inch. Each rod journal is drilled with a 7\/8 inch or 3\/4 inch lightening hole to reduce rotational inertia.","brand":"Lunati","offers":[{"title":"Default Title","offer_id":52662840688952,"sku":"LUN-60336221","price":1959.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687500912.jpg?v=1784321530","url":"https:\/\/store.motormia.co\/products\/4340-steel-crankshaft-3-622-stroke","provider":"MOTORMIA","version":"1.0","type":"link"}