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In a stroke of genius, GM decided that all LS variants would be externally identical. That means that whether you're dropping in a 4.6L truck engine, a newer LS3, or anything in between, all the external brackets and mounts are the same. So the factory pulley system on this fourth-gen Camaro LS1 will bolt right to any other LS variant. One exception is that some iron blocks need a hole or two drilled.