Cometic H2549SP3040S MLS Head Gasket Nissan Bore - RB20E/DE/DET 78mm 040 Inch

The Cometic H2549SP3040S is a multi-layer steel (MLS) head gasket engineered for Nissan RB-20E, RB-20DE, and RB-20DET 2.0L engines. This precision gasket features a 78mm bore diameter and .040 inch compressed thickness, designed to deliver superior sealing performance in high-performance and boosted applications.

Construction and Materials:

• Three-layer stainless steel construction for exceptional strength and durability
• Outer layers coated with Viton fluoroelastomer and embossed for optimal sealing
• Viton coating withstands temperatures up to 482°F in extreme environments
• Uncoated center shim layer allows for multiple thickness variations
• Stainless steel provides superior rebound characteristics and corrosion resistance

Performance Benefits:

• Ideal for aluminum heads on cast iron or aluminum blocks
• Withstands shearing forces between dissimilar metals
• Requires less clamp load, reducing cylinder bore distortion
• Promotes even torque distribution across the entire sealing surface
• No re-torque necessary after installation
• Handles harsh sealing environments and high load conditions

Cometic Gasket is a leading worldwide supplier of high-performance engine sealing solutions, trusted by championship racing teams across multiple motorsports disciplines. Each gasket is manufactured in their state-of-the-art facility in Concord, Ohio, using advanced materials and precision engineering.