Cometic C4323-098 Nissan MLS Cylinder Head Gasket Bore - RB30 87mm

The Cometic C4323-098 is a precision-engineered Multi-Layer Steel (MLS) cylinder head gasket designed specifically for Nissan RB30 engines. This high-performance gasket features an 87mm bore diameter and a compressed thickness of 0.098 inches, making it ideal for both stock rebuilds and performance applications.

Key Features:

• Multi-Layer Steel (MLS) construction for superior sealing and durability
• 87mm bore diameter designed for RB30 engine applications
• 0.098-inch (2.49mm) compressed gasket thickness
• Advanced material composition withstands extreme cylinder pressures and temperatures
• Eliminates gap leakage with spring-like effect that maintains seal integrity
• Resists corrosion and accommodates thermal expansion better than traditional composite gaskets

Cometic MLS gaskets utilize multiple layers of stainless steel with specialized coatings to create a robust seal between the cylinder head and engine block. The gasket's construction allows it to recover and maintain clamping force even as the engine experiences thermal cycling and head lift during high-performance operation. This makes it an excellent choice for turbocharged, supercharged, or high-compression RB30 builds where reliability under extreme conditions is essential.