Cometic C4317-060 MLS Cylinder Head Gasket for Nissan RB25DE/RB25DET 86mm Bore

The Cometic C4317-060 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Nissan RB25DE and RB25DET engines. This precision gasket features an 86mm bore diameter and .060" (1.5mm) compressed thickness, making it ideal for turbocharged and high-boost applications where superior sealing is critical.

Key Features:

• Multi-Layer Steel construction provides exceptional strength and durability under extreme cylinder pressures
• 86mm bore diameter designed for stock and performance RB25 builds
• .060" compressed thickness for proper compression ratio tuning
• Advanced coating technology ensures optimal sealing between cylinder head and block
• Engineered to withstand high heat and extreme combustion pressures in turbo applications
• Eliminates head lift and combustion leaks in high-horsepower applications

Cometic MLS gaskets feature multiple layers of stainless steel with proprietary coatings that accommodate surface imperfections while maintaining a superior seal. The embossed layers distribute stress evenly across the gasket surface, preventing hot spots and ensuring consistent sealing under varying temperatures and loads. This gasket is the preferred choice for serious RB25 enthusiasts building engines for street performance, drag racing, or road course applications.