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15 Casting Processor Dan Casarez inspects the crankshaft and removes excess material at the “chip station” on the process belt. He then performs a “ring test,” which, as its name implies, involves striking the crankshaft with a hammer and listening to the resulting sound. LS3 (and other nodular-iron) cranks should ring like a bell. Afterwards, any excess metal remaining on the cranks is removed with a hand grinder.