A strong, reliable head gasket is essential when building or refreshing a Nissan RB26DETT. The Tomei Cylinder Head Gasket (part number TA4070-NS05B) is a multi-layer metal gasket designed specifically for the RB26 engine, featuring an 87.0 mm bore and 1.5 mm thickness. This size is commonly chosen for performance builds that require a balance between sealing strength and compression ratio adjustment.
Tomei developed these gaskets to address the limitations of factory units under elevated boost, heat, and cylinder pressure. The design incorporates reinforced sealing around the combustion chambers while maintaining precise control of the water and oil passages. The result is improved resistance to blowouts and better long-term durability in both street and high-output applications. Multiple thickness options are available in the Tomei range, allowing builders to fine-tune compression as needed for their specific combination of pistons, deck height, and performance goals.
At Terra Firma Automotive, we supply this genuine Tomei 87.0-1.5 mm head gasket as a trusted foundation for Skyline GT-R R32, R33, and R34 engine builds. Whether you are assembling a refreshed stock-bottom-end motor or supporting higher boost levels, this gasket provides the sealing performance and reliability expected from Tomei’s Japanese engineering. Choose Terra Firma Automotive for authentic Tomei head gaskets that help keep your RB26 sealed and consistent under demanding conditions.
- Genuine Tomei Cylinder Head Gasket
- Part Number: TA4070-NS05B
- Application: Nissan RB26DETT
- Bore size: 87.0 mm
- Thickness: 1.5 mm
- Multi-layer metal construction
- Reinforced combustion chamber sealing
- Precision water and oil passage sealing
- Suitable for performance and high-boost builds
- Allows compression ratio adjustment via thickness selection
- Direct fit for Skyline GT-R R32, R33, and R34
- Improved durability over factory head gaskets
- Developed for elevated temperature and pressure conditions
- Trusted Japanese performance component
- Available from Terra Firma Automotive
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