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154 0512 Insa 02 Z

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Before we did anything, we needed to address a slight issue with our crank pulley. The 4.2L crank used in the stroker buildup is a long-nose crank, while the stock 4.0L crank is a short-nose crank. As a result, our crank pulley/harmonic balancer wouldn't line up with the other pulleys. We bought this machined aluminum crank pulley spacer from Hesco, which allowed our 4.0L harmonic balancer to fully seat onto the crank and bring the pulleys into alignment.