4.125 MLS Head Gasket .040 Dodge 6.1L Hemi

The 4.125 MLS Head Gasket .040 Dodge 6.1L Hemi from COMETIC GASKETS is an essential component for high-performance engine builds and rebuilds. This gasket is designed for both enthusiasts and professional shops engaged in engine modifications, cylinder head work, or complete overhauls.

Constructed from multi-layer steel (MLS), this gasket features precisely engineered stainless-steel and spring-steel layers bonded with elastomer. This design ensures a reliable seal that can withstand the thermal cycles and pressure spikes typical in both forced-induction and naturally-aspirated Hemi applications. The .040-inch compressed thickness is specifically engineered to match OEM deck heights while accommodating the 4.125-inch bore diameter of the 6.1L platform.

This head gasket is particularly beneficial for owners of 2005–2010 Dodge Magnum, Charger, and 300C vehicles running the 6.1L Hemi. It is also a preferred choice for engine builders preparing stroker builds or supercharger installations, ensuring long-term sealing integrity and performance.