Callies Magnum Series 4340 Forged Crankshaft for Ford 351C CAEFU71T-MG Product:4.125" Stroke, 2.100" Pin, 351C Mains 12-Point Head Black Oxide3/8" UNC

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Callies Magnum Series 4340 Forged Crankshaft for Ford 351C CAEFU71T-MG Product:4.125" Stroke, 2.100" Pin, 351C Mains 12-Point Head Black Oxide3/8" UNCCallies Magnum Series 4340 Forged Crankshaft for Ford 351C4. 125" Stroke, 2. 100" Pin, 351C Mains CAEFU71T MG EFU71T MG After years of service, Magnum crankshafts by Callies have established themselves as one of the most durable competition crankshafts ever produced. Magnum crankshafts are manufactured from ultra pure SAE 4340 steel. Callies then subjects this material to multiple heat treatments, resulting in a crankshaft with unsurpassed wear and