Selecting the correct head gasket thickness is a critical decision when assembling a high-performance Nissan RB26DETT. The Tomei Cylinder Head Gasket (part number TA4070-NS05C) is a multi-layer metal gasket designed specifically for the RB26 engine, featuring an 87.0 mm bore and a 1.8 mm thickness. This thicker option is frequently chosen for builds targeting higher boost levels, where a reduction in static compression ratio helps manage cylinder pressures and detonation risk.
Factory head gaskets can become a weak point once heat and combustion pressure increase significantly. Tomei’s design incorporates reinforced sealing around the combustion chambers and carefully engineered water and oil passages, delivering improved resistance to blowouts and more consistent long-term sealing under demanding conditions. The 1.8 mm thickness provides builders with greater flexibility in compression ratio management when paired with specific pistons and deck heights, making it a practical choice for turbocharged RB26 applications aimed at elevated power outputs.
At Terra Firma Automotive, we supply this genuine Tomei 87.0-1.8 mm head gasket for Skyline GT-R R32, R33, and R34 owners. Whether you are performing a head service or building a more aggressive forced-induction setup, this gasket offers the durability and precision expected from Tomei’s Japanese engineering. Choose Terra Firma Automotive for authentic components that form a reliable foundation for serious RB26 builds.
- Genuine Tomei Cylinder Head Gasket
- Part Number: TA4070-NS05C
- Application: Nissan RB26DETT
- Bore size: 87.0 mm
- Thickness: 1.8 mm
- Multi-layer metal construction
- Reinforced combustion chamber sealing
- Precision water and oil passage design
- Ideal for higher-boost applications
- Helps lower static compression ratio
- Improved resistance to heat and cylinder pressure
- Direct fit for RB26-powered Skyline GT-R models
- Stronger alternative to factory head gaskets
- Trusted Japanese performance component
- Available from Terra Firma Automotive
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