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Smeding Performance has crankshafts manufactured to their tolerances from forged non-twist 4340 steel with the polished big end journals radiused to their specs. They are drilled through the big end throws to reduce weight before being shot peened, and the oil holes are chamfered to grab the oil. With the bob weights attached to the crank, material is removed from the counterweights using this machine. A computer shows how much weight needs to be removed and where to remove it. After micro-polishing and washing, the assembly can begin. View Related Article
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