4.100 MLS Head Gasket .070 GM LS1/LS2/LS3/LS6

The Cometic Gaskets 4.100 MLS Head Gasket .070 is designed for LS engine builders and enthusiasts seeking reliability in high-performance applications. It is suitable for both stock and modified GM LS1, LS2, LS3, and LS6 engines, providing the necessary sealing integrity for various performance setups.

Constructed from multi-layer steel (MLS), this head gasket features stainless steel and elastomer layers that are bonded together, ensuring superior reusability and consistent clamp load retention across thermal cycles. The .070-inch compressed thickness is designed to match factory GM LS head geometry, which is critical for maintaining intended compression ratios and spark timing characteristics.

This head gasket is compatible with a range of GM LS engines across multiple generations and platforms, including fourth-generation Camaros and Corvettes, as well as truck applications. Proper installation requires adherence to head bolt torque sequencing and ensuring a clean surface for optimal performance.