RB25DET engines in the R33 and R34 Skyline place significant stress on the cylinder head gaskets, often revealing the limitations of the original equipment design under increased boost and heat. The Tomei Cylinder Head Gasket (TA4070-NS06A) in 87.0-1.2mm is a high-performance upgrade that uses a multi-layer steel construction with advanced super grommet sealing technology. By reinforcing the areas around the bore and water/oil passages, this gasket set provides exceptional resistance to high surface pressure, heat, and boost levels commonly found in tuned RB25 engines.
Tomei’s meticulous development process focused on real-world performance demands, resulting in gaskets that maintain perfect sealing integrity even under extreme conditions. The premium-grade materials and specialized coatings ensure long-term durability while the engine-specific design delivers precise water and oil route sealing that prevents leaks and maintains consistent performance. Multiple thickness options also give builders the flexibility to fine-tune compression ratios when combined with other Tomei components, making this set a versatile and essential part of any serious RB25 project.
At Terra Firma Automotive, we supply this genuine Tomei Cylinder Head Gasket as a critical reliability component for serious RB25DET enthusiasts. Replacing the stock head gasket with Tomei’s advanced multi-layer design eliminates a common source of failure and gives you the confidence to run higher boost and more aggressive cam profiles. Whether you’re refreshing a daily driver or assembling a track car, these gaskets deliver the quality and performance expected from Tomei’s renowned engineering, helping your RB25 run stronger and more reliably for years to come.
- Tomei multi-layer cylinder head gasket for RB25DET
- Super grommet design resists high surface pressure around the bore
- Ultra-durable high-performance construction for tuned engines
- Highly optimized, engine-specific sealing surfaces
- Premium-grade materials and coatings for superior heat resistance
- Precision water and oil route seals to prevent leaks
- Multiple thickness options for compression ratio adjustment
- Significantly more reliable than factory head gaskets under boost
- Essential upgrade for high-boost and high-RPM builds
- Supports aggressive cam profiles and elevated boost levels
- Part of Tomei’s comprehensive gasket lineup for complete engine builds
- Trusted by professional RB25 builders for proven durability
- Improves long-term sealing integrity and engine performance
- Ideal for both street and competition RB25DET applications
Questions & Answers
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Good Day, Do you guys have these currently in stock? Everywhere else they are out of stock
Hi, as of 1/14/2021, we have one in stock. You may want check with us first in the future as we try to stock as much as possible (unlike competitors) :) Our goal is to support enthusiasts who are excited to work on their cars! Thanks!