If youre serious about winning, then get serious about Callies Performance. Founded in 1989, Callies Performance is committed to staying ahead of the competition so you can too. Using the latest in computer-aided solid modeling and CNC technology, Callies Performance manufactures crankshafts, connecting rods, and engine bearings to exacting tolerances. That attention to detail and commitment to innovation has helped make Callies crankshafts a regular in winners circles across the country. Your rotating assembly is the heart of your race enginemake sure its running strong with Callies Performance products!