Bolt Kit GM LS Timing Cover

The Moroso Bolt Kit GM LS Timing Cover is a precision-engineered OEM replacement fastener set designed for GM LS-series engine timing cover applications. This eight-piece bolt kit delivers exact dimensional and material specifications required for secure, corrosion-resistant assembly on high-performance and street engine builds where timing cover integrity is critical to oil containment and engine longevity.

Each bolt measures 8mm diameter with a 1.25mm thread pitch and 30mm length, providing the proper clamping force and engagement depth required for LS timing covers. The hex head design allows controlled torque application with standard metric wrenches, while the zinc oxide finish provides corrosion protection in engine bay environments. Constructed from hardened steel, these bolts resist vibration loosening and maintain clamp load over extended driving cycles—critical for preventing oil leaks at the timing cover gasket interface.

The kit is essential for LS engine builders, performance shops, and engine rebuilders performing timing cover service, gasket replacement, or complete engine reassembly. OEM-specification fasteners eliminate the risk of using incorrect or corroded original hardware, which can compromise gasket sealing and lead to oil seepage. Moroso's fastener kits are engineered to match factory torque specifications and dimensional requirements, ensuring reliability whether the application is a stock rebuild, mild street engine, or high-output performance platform.

LS-series engine development spans multiple generations and platforms—from truck blocks to performance car engines. Using the correct fastener specification ensures compatibility across all LS variants and protects against assembly errors that can delay builds or create warranty issues. This bolt kit represents a cost-effective, verified solution for timing cover fastening on any GM LS engine project.

Set of eight bolts; typically sufficient for standard timing cover applications, though builders should verify the bolt count for their specific LS block variant before assembly.