4.100 MLX Head Gasket .040 GM LT1/LT4 Gen-V

The 4.100 MLX Head Gasket .040 GM LT1/LT4 Gen-V is designed for LS platform builders and performance enthusiasts who are enhancing their fifth-generation small-block engines. This multi-layer steel (MLS) gasket provides the necessary compression seal and thermal stability for applications involving upgraded cylinder heads, increased displacement, or forced induction setups.

With a compressed thickness of .040 inches and a bore diameter of 4.100 inches, this gasket is specifically engineered to match LT1 and LT4 combustion chamber geometry. The MLX construction utilizes multiple steel layers combined with proprietary facing materials, which helps resist gasket creep and maintain clamp load under thermal cycling, making it suitable for high-performance applications.

Engine builders, LS swappers, and tuners working on C8 Corvette engines, 5th-gen Camaro powerplants, or truck engine combinations will find this gasket essential for achieving long-term durability and reliability. Proper installation requires a deck surface finish of 63 microinches Ra or better and accurate torque sequencing to ensure optimal performance.