Selecting the correct head gasket thickness is an important part of any RB26DETT build. The Tomei Cylinder Head Gasket (part number TA4070-NS05A) is a multi-layer metal gasket designed for the Nissan RB26 engine with an 87.0 mm bore and 1.2 mm thickness. This thinner specification is often preferred when builders want to maintain or slightly increase compression while still benefiting from Tomei’s strengthened sealing design.
Factory head gaskets can struggle under the higher cylinder pressures and temperatures found in performance RB26 applications. Tomei’s gasket uses a multi-layer metal construction with reinforced sealing around the combustion chambers and carefully engineered water and oil passages. The 1.2 mm thickness provides a reliable seal while allowing more precise control over final compression ratio when paired with specific pistons and deck heights. It is a proven choice for both refreshed street engines and higher-output builds that demand consistent sealing performance.
At Terra Firma Automotive, we supply this genuine Tomei 87.0-1.2 mm head gasket for Skyline GT-R R32, R33, and R34 owners. Whether you are assembling a mild performance engine or preparing a more aggressive setup, this gasket delivers the durability and fitment accuracy expected from Tomei. Trust Terra Firma Automotive for authentic Japanese performance components that form the foundation of a reliable RB26.
- Genuine Tomei Cylinder Head Gasket
- Part Number: TA4070-NS05A
- Application: Nissan RB26DETT
- Bore size: 87.0 mm
- Thickness: 1.2 mm
- Multi-layer metal construction
- Reinforced combustion chamber sealing
- Precision water and oil passage design
- Suitable for street and performance builds
- Helps maintain higher compression compared to thicker gaskets
- Direct fit for Skyline GT-R R32, R33, and R34
- Improved resistance to heat and cylinder pressure
- Part of Tomei’s modular thickness range for CR tuning
- Trusted Japanese engineering
- Available from Terra Firma Automotive
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