Cometic C4322-040 MLS Cylinder Head Gasket for Nissan Engine Bore - RB30 86mm

The Cometic C4322-040 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Nissan RB30E, RB30ET, and RB30S inline-six engines. This precision-manufactured gasket features an 86mm bore diameter and a compressed thickness of .040 inches, making it ideal for street performance and forced induction applications.

Key Features:

• Multi-Layer Steel (MLS) construction provides superior sealing and durability under high cylinder pressures
• 86mm bore diameter designed for RB30 engine specifications
• .040 inch (1.02mm) compressed thickness for precise compression ratio tuning
• Compatible with Nissan RB30E, RB30ET, and RB30S engine variants
• Excellent resistance to heat, pressure, and engine movement
• Eliminates the need for sealants with advanced embossment technology

Cometic MLS head gaskets are constructed from multiple layers of stainless steel with a Viton rubber coating, creating a gasket that can withstand extreme temperatures and pressures while conforming to imperfect sealing surfaces. The embossed layers provide multiple sealing points around combustion chambers, coolant passages, and oil ports, ensuring a reliable seal in demanding performance applications.