{"product_id":"callies-sak-21a-mg-sbc-4340-forged-magnum-crankshaft-with-3-800-inch-stroke-and-internal-balance","title":"Callies SAK-21A-MG SBC 4340 Forged Magnum Crankshaft with 3.800 Inch Stroke and Internal Balance","description":"SBC 4340 Forged Magnum Crank - 3.800 Stroke\n\u003cp\u003eThe Callies SAK-21A-MG forged Magnum crankshaft is designed for high-performance small block Chevy engines. Crafted from durable 4340 forged steel, this crankshaft provides strength and reliability under demanding conditions. Featuring a 3.800-inch stroke and internal balancing, it ensures smooth operation and optimal power delivery. The crankshaft includes a two-piece rear seal and is compatible with 400 main bearings, making it suitable for a variety of racing and performance applications. Its precision engineering minimizes vibrations and enhances engine longevity, making it an excellent choice for enthusiasts seeking durability and performance.\u003c\/p\u003e\u003cp\u003eManufactured with high-quality materials, the Magnum crankshaft offers excellent fatigue resistance and torsional strength. Its compact design and robust construction make installation straightforward for professional engine builders and DIY enthusiasts. Whether building a race engine or upgrading a street performance setup, this crankshaft is engineered to meet the demanding needs of high-performance small block Chevy builds. The product is supplied without air restriction, and it is suitable for standard shipping channels, not limited to truck freight only.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eMaterial: 4340 forged steel for durability and strength\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eStroke: 3.800 inches for increased power and torque\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eInternal Balance: Designed for smooth engine operation\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSeal Type: Two-piece rear seal for reliable sealing\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eApplication: Compatible with 400 main bearings in small block Chevy engines\u003c\/li\u003e\u003c\/ul\u003e","brand":"CALLIES","offers":[{"title":"Default Title","offer_id":44719551971394,"sku":"CALSAK21A-MG","price":3680.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0688\/4327\/4306\/files\/CALSAK21A-MG.jpg?v=1786530691","url":"https:\/\/ltactradingco.com\/products\/callies-sak-21a-mg-sbc-4340-forged-magnum-crankshaft-with-3-800-inch-stroke-and-internal-balance","provider":"LTAC Trading Co.","version":"1.0","type":"link"}