85.5mm MLS Head Gasket .051 - Mits 4G63/4G63TB

The Cometic Gaskets 85.5mm MLS Head Gasket .051 (C4233-051) is designed for Mitsubishi 4G63 and 4G63TB engine builders who require a reliable solution for high-performance applications. This multi-layer steel gasket is suitable for various setups, including street turbo builds and competition-level platforms. It is engineered to provide effective sealing under high boost conditions.

Utilizing advanced MLS (multi-layer steel) technology, this gasket features a spring-steel core with elastomer facing, which helps maintain consistent clamp load across the combustion chamber. The .051-inch thickness is optimized for both stock and modified 4G63 heads, ensuring proper combustion chamber volume and quench clearance without the need for extensive head modifications.

Ideal for mechanics and tuners, this gasket is recommended for applications where boost pressures may exceed 15–20 psi. Proper installation techniques, including head bolt torque sequencing and the use of ARP studs, are advised to enhance gasket performance and longevity. This gasket is a premium choice for those looking to maximize their engine's potential.