The JE Pro Seal head gasket for Mitsubishi 4G63 engines used on Evolution IV–VIII is specified with an 86.3mm bore and 0.039-inch thickness (ref C4156-040). This gasket restores the sealing surface between head and block to maintain combustion and coolant sealing during rebuilds or head service. Verify the 86.3mm bore and 0.039in thickness against the application before installation.
JE Pro Seal Mitsubishi 4G63 EVO 4-8 86.3mm 0.039in Head Gasket (ref C4156-040)