GM 12557840 LSX Crank Bolt

GM LS & LT Series Harmonic Balancer Crank Bolt

SKU: 12557840

Regular price $8.99 Save $-8.99
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Only -37 items in stock!


GM LSX Head, Crank, and Main bolts are all considered stretch to yield bolts. Each bolt must be torque-d to spec according to manufacturer’s degree ratings. Meaning you can old use them once. When installing these bolts be careful to read instructions. These bolts are not the old school torque to lb.


  • Crank Bolt LSX & LTX Engines.