Cometic C4323-120 Nissan MLS Cylinder Head Gasket Bore - RB30 87mm 0.120

The Cometic C4323-120 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 0.120-inch compressed thickness, 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 Nissan RB30 inline-six engines
• 0.120-inch (3.05mm) compressed thickness for precise compression ratio tuning
• Advanced embossment technology ensures even pressure distribution
• Accommodates thermal expansion and cylinder head movement
• Resistant to blowout and coolant leaks under high cylinder pressures
• Suitable for turbocharged and high-compression applications

Cometic's MLS gaskets feature multiple layers of stainless steel with elastomeric coatings that provide exceptional conformability to sealing surfaces. The embossed layers create a micro-seal around combustion chambers, coolant passages, and oil galleries. This design allows the gasket to maintain its seal integrity even when subjected to extreme temperatures and pressures found in performance and racing environments.

Engineered for enthusiasts building or rebuilding Nissan RB30 engines, this gasket provides the reliability and performance demanded by street, strip, and track applications.