Cometic C4591-040 MLS Cylinder Head Gasket Bore Mitsubishi - 87mm 4G63T

The Cometic C4591-040 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Mitsubishi 4G63T DOHC turbocharged engines found in Evolution 4-8 models. This precision-manufactured gasket features an 87mm bore diameter and a .040" (1.02mm) compressed thickness, making it ideal for performance builds and high-boost applications.

Key Specifications:

• Multi-Layer Steel (MLS) construction for superior sealing and durability
• 87mm bore diameter optimized for 4G63T engine
• .040" compressed thickness
• Compatible with Mitsubishi Evolution 4, 5, 6, 7, and 8 (DOHC turbo models only)
• Designed for Mitsubishi 4G63T turbocharged engines

Cometic's MLS gaskets feature multiple layers of stainless steel with a Viton rubber coating, providing excellent resistance to combustion gases and coolant while maintaining optimal clamping force. The .040" thickness allows for increased compression ratio adjustments and accommodates mild engine milling or deck surfacing. This gasket is engineered to withstand the extreme pressures and temperatures of turbocharged performance applications, making it a popular choice for modified Evo engines running higher boost levels.

Note: This gasket is designed exclusively for DOHC 4G63T engines in Evolution 4-8 models. Proper surface preparation and torque specifications are critical for optimal performance and longevity.