Cometic C4574-120 MLS Cylinder Head Gasket for Subaru - EJ255/EJ257

The Cometic C4574-120 is a Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Subaru EJ255 Version 2 and 2007-2018 EJ257 engines. This precision gasket features a 101mm bore diameter and 0.120-inch compressed thickness, making it an ideal choice for both stock rebuilds and performance applications.

Key Features:

• Multi-Layer Steel (MLS) construction for superior sealing and durability
• 0.120-inch (3.05mm) compressed thickness allows precise compression ratio tuning
• 101mm bore diameter designed for EJ255 Version 2 and 2007+ EJ257 engines
• Advanced embossment technology ensures even load distribution across the sealing surface
• Compatible with aluminum cylinder heads and engine blocks
• Suitable for turbocharged applications and high-performance builds

Cometic MLS gaskets utilize multiple layers of stainless steel with proprietary coatings to provide maximum combustion sealing in demanding conditions. The 101mm bore accommodates stock and slightly overbored cylinders, while the 0.120-inch thickness helps builders dial in the exact compression ratio needed for their specific application. This gasket is designed to withstand the extreme cylinder pressures found in both daily-driven and race-prepared Subaru engines.