{"product_id":"callies-magnum-sbc-crankshaft","title":"Callies Magnum SBC Crankshaft","description":"\u003cp data-start=\"121\" data-end=\"183\"\u003e\u003cstrong data-start=\"121\" data-end=\"183\"\u003eCallies Magnum SBC Crankshaft\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"185\" data-end=\"434\"\u003eBuilt for big performance and long life, the Callies Magnum crankshaft is your go-to for high-output Small Block Chevy builds. When you want strength, precision, and track-proven durability in one package, this crank checks all the boxes.\u003c\/p\u003e\n\u003cp data-start=\"436\" data-end=\"459\"\u003e\u003cstrong data-start=\"436\" data-end=\"457\"\u003eSpecs \u0026amp; Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"462\" data-end=\"590\"\u003e\u003cstrong data-start=\"462\" data-end=\"473\"\u003e-Stroke:\u003c\/strong\u003e 3.480\" to 4.000″ – ideal for small block Chevy combos from 350-440 ci\u003c\/p\u003e\n\u003cp data-start=\"593\" data-end=\"696\"\u003e\u003cstrong data-start=\"593\" data-end=\"618\"\u003e-Rod Journal Diameter:\u003c\/strong\u003e 2.100″\u003c\/p\u003e\n\u003cp data-start=\"699\" data-end=\"813\"\u003e\u003cstrong data-start=\"699\" data-end=\"725\"\u003e-Main Journal Diameter:\u003c\/strong\u003e 350 main (≈ 2.448\")\u003c\/p\u003e\n\u003cp data-start=\"816\" data-end=\"938\"\u003e\u003cstrong data-start=\"816\" data-end=\"835\"\u003e-Rear Main Seal:\u003c\/strong\u003e 2-piece style\u003c\/p\u003e\n\u003cp data-start=\"941\" data-end=\"1144\"\u003e\u003cstrong data-start=\"941\" data-end=\"966\"\u003e-Material \u0026amp; Treatment:\u003c\/strong\u003e Premium 4340 forged steel, Ultra-Case nitride hardened, with gun-drilled mains and fully profiled counterweights to reduce rotating mass\u003c\/p\u003e\n\u003cp data-start=\"1147\" data-end=\"1250\"\u003e\u003cstrong data-start=\"1147\" data-end=\"1159\"\u003e-Balance:\u003c\/strong\u003e Internal balance – smoother operation at high RPM\u003c\/p\u003e\n\u003cp data-start=\"1253\" data-end=\"1376\"\u003e\u003cstrong data-start=\"1253\" data-end=\"1269\"\u003e-Application:\u003c\/strong\u003e Small Block Chevy (350 mains), builds using 6.000″ or longer rods\u003c\/p\u003e\n\u003cp data-start=\"1378\" data-end=\"1794\"\u003e\u003cstrong data-start=\"1378\" data-end=\"1400\"\u003eWhy It’s a Winner:\u003c\/strong\u003e\u003cbr data-start=\"1400\" data-end=\"1403\"\u003eThis crankshaft is built for the kind of abuse that kills lesser rotating assemblies. Whether you’re turning up the boost, adding nitrous, or pushing high RPM’s, Magnum cranks stay straight, balanced, and reliable. The combination of hardened surfaces, precision machining, and mass-correct counterweights means less bearing wear, and durability you can count on.\u003c\/p\u003e\n\u003cp data-end=\"1375\" data-start=\"1229\"\u003e\u003cstrong data-end=\"1257\" data-start=\"1229\"\u003eSiebert Performance Tip:\u003c\/strong\u003e Match this crank with Callies Ultra rods and Wiseco forged pistons for a rotating assembly that’s proven to win.\u003c\/p\u003e","brand":"Callies","offers":[{"title":"3.480","offer_id":45609939042475,"sku":"SAF11A-MG","price":3184.0,"currency_code":"USD","in_stock":true},{"title":"3.750","offer_id":45609939075243,"sku":"SAJ11A-MG","price":3184.0,"currency_code":"USD","in_stock":true},{"title":"3.875","offer_id":45609939108011,"sku":"SAM11A-MG","price":3510.0,"currency_code":"USD","in_stock":true},{"title":"4.000","offer_id":45609939140779,"sku":"SAO11A-MG","price":3510.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0700\/4880\/9131\/files\/SBC-Magnum.jpg?v=1757651723","url":"https:\/\/readut-01.myshopify.com\/products\/callies-magnum-sbc-crankshaft","provider":"Siebert Performance","version":"1.0","type":"link"}