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 AISI 4340 steel. Callies then subjects this material to multiple heat treatments, resulting in a crankshaft with unsurpassed wear and strength characteristics. All Magnum cranks feature Callies Ultra-Case heat treatment. Each Magnum crank will have gun drilled mains and fully profiled counterweights, regardless of engine type. A typical 4.000” stroke Small Block Chevy will weigh less than 48 pounds. Magnum crankshafts are available for a variety of engine types and can be manufactured to your specific configuration.
Magnum - Ford 460
Callies now offers high quality domestically produced Magnum crankshafts for the Ford 460 - 429 engine families. These crankshafts are machined from high quality forgings that are heat-treated and metalurgically certified at our facility. Magnum Ford 460’s are counterweighted to balance bob weights up to 2400 grams without the use of heavy metal. We are confident in the ability of our Magnum 460’s to easily withstand the rigors of a 2,000 HP engine.