4.310 MLS Head Gasket .040 - 426 Hemi

The 4.310 MLS Head Gasket .040 - 426 Hemi by Cometic Gaskets is designed for serious big-block Mopar enthusiasts and engine builders focused on high-performance 426 Hemi applications. This premium multi-layer steel head gasket is engineered to withstand extreme combustion pressures and thermal cycling, making it ideal for aggressive cam profiles, nitrous systems, and forced induction setups commonly found in vintage muscle cars and modern restorations.

Constructed from precision-stamped stainless steel layers bonded with elastomer facing, this gasket creates a conformable seal that adapts to cylinder head and block deck irregularities without compromising compression or durability. The .040-inch thickness is specifically designed to maintain proper quench distance on 426 Hemi heads, ensuring robust sealing under boost and high-RPM operation that would typically fail with conventional composite gaskets.

This gasket is particularly beneficial for those rebuilding or upgrading 426 Hemi engines in classic Dodge, Plymouth, and Chrysler muscle cars. With its precise 4.310-inch bore diameter, it guarantees optimal fire-ring coverage, preventing blowby that can lead to oil mixing, coolant leaks, and performance loss on both the dyno and the street.