Need a custom crankshaft? Darkhorse Motor Company specializes in handcrafted and remanufactured Man O’War® crankshafts built precisely to your specs. Whether you're increasing bore or building a bespoke stroker setup, our proprietary blueprinting, balancing, and bearing upgrades ensure smooth, reliable performance. With deep roots in Harley-Davidson engineering and racing pedigree, we elevate your engine’s soul with craftsmanship built to endure the torque—and the race.