Strong and consistent cylinder head sealing becomes increasingly important as boost levels and thermal loads rise on an RB26DETT. The Tomei Cylinder Head Gasket (part number TA4070-NS05F) is a multi-layer performance gasket designed for the Nissan RB26DETT with an 88.0 mm bore and 1.8 mm thickness, offering a thicker sealing option for oversize piston applications.
Tomei developed this gasket to address the weak points of conventional designs under elevated cylinder pressure. The multi-layer construction and reinforced sealing structure help maintain a reliable seal around the combustion chambers, water jackets, and oil passages even as combustion loads increase. The 88.0 mm bore accommodates oversize pistons, while the 1.8 mm thickness provides additional stack height for builders adjusting quench, compression ratio, or overall deck clearance during a performance rebuild.
This single head gasket is well suited to high-output RB26DETT engines in the Skyline R32, R33, and R34 GT-R that require a durable sealing solution matched to larger bore sizes. At Terra Firma Automotive, we supply this genuine Tomei Cylinder Head Gasket as a trusted component for serious RB26 builds. Whether the engine is being prepared for higher boost or simply needs a robust replacement during an overhaul, this gasket delivers the sealing integrity associated with Tomei’s performance range. Choose Terra Firma Automotive for authentic Japanese engine components that support long-term reliability on the RB26 platform.
- Genuine Tomei Cylinder Head Gasket
- Part Number: TA4070-NS05F
- Application: Nissan RB26DETT
- Bore size: 88.0 mm (oversize)
- Thickness: 1.8 mm
- Multi-layer performance construction
- Reinforced sealing design for higher cylinder pressures
- Suitable for oversize piston builds
- Thicker profile for compression and quench adjustment
- Improved resistance to boost and heat-related failure
- Helps maintain consistent combustion, water, and oil sealing
- Ideal for high-output and performance rebuilds
- Trusted Japanese performance gasket engineering
- Available from Terra Firma Automotive
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