87mm MLS Head Gasket .051 - Mits 4G63/4G63TB

The 87mm MLS Head Gasket .051 for Mitsubishi 4G63/4G63TB is a precision-engineered component designed for builders and mechanics seeking reliable performance in turbocharged and naturally aspirated four-cylinder platforms. This gasket is essential for anyone upgrading boost levels, modifying ignition timing, or rebuilding a 4G63 engine that has experienced head lift or detonation-related failures.

Constructed from Multi-Layer Steel (MLS), this gasket provides superior conformability and reusability compared to traditional composite gaskets. It effectively seals across port faces and between cylinder bores, even with minor surface irregularities. The .051-inch thickness is specifically calibrated for 4G63 head and block deck geometry, maintaining precise combustion chamber volume and compression ratio, which is critical for tuning accuracy and knock control.

Ideal for Mitsubishi Lancer Evolution, DSM (Diamond-Star Motors), and 4G63-swapped platforms, this gasket excels under high-boost conditions and sustained RPM operation. Proper head gasket selection is crucial for maintaining sealing integrity under pressure and thermal cycling, making this product a reliable choice for performance enthusiasts.