GM/Chevrolet Performance Harmonic Balancer Bolt (Crankshaft Bolt) for GEN 3/4 LS & GEN 5 LT Engines (4.8L/5.3L/5.7L/6.0L/6.2L) - Part Number 12557840
The OEM crankshaft bolt on the GM LS and LT engine platforms is torque-to-yield and is designed to be replaced anytime it is removed.
