Tomei selected stainless for the material of the gasket, which it is possible to cool down the cylinder effectively by transferring heat to the cylinder head equally with the high thermal conductivity of stainless. And since it does not become high temperature locally, cylinder head will hardly blow.
Features
Since intensity of stainless steel is high, it can make the joint rigidity of the cylinder head and the engine block high and prevents blown head. If combination of a head and a block is firm, twist and bent of the whole engine can be reduced while rigidity is increased, and the durability of power transmission will be improved.
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| Vehicle | Thickness | Bore | Price | Order | |
|---|---|---|---|---|---|
| 1312870121 In stock at Tomei | |||||
| RB25DET | 1.2 mm | 87.0 mm | | | |
| 11044R904G | |||||
| RB25DET | 1.2 mm | 88.0 mm | | | |
| 1312870151 In stock at Tomei | |||||
| RB25DET | 1.5 mm | 87.0 mm | | | |
| 11044R905G In stock at Tomei | |||||
| RB25DET | 1.5 mm | 88.0 mm | | | |
| 1312870181 Last one in stock! | |||||
| RB25DET | 1.8 mm | 87.0 mm | | ||
Tomei was founded in 1968 by members of the Johoku Riders motorcycle club, among them Nissan works driver Seiichi Suzuki. It began as a racing engine builder for Nissan engines only, and its work on the Nissan L-series and later the RB and SR engines made its name. The company took the name Tomei Powered when it moved to Machida, Tokyo, in 1994.
Tomei now develops parts for many Japanese engines, Mitsubishi, Subaru and Toyota as well as Nissan: camshafts, valve train parts, pistons, connecting rods and crankshafts, complete engines, and exhaust systems such as its well-known Expreme titanium range.
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About Nengun Performance
Since the year 2000, Nengun Performance has supplied over 500,000 parts direct from Fukuoka, Japan to 170 countries worldwide. If you have any questions, our experienced and friendly customer service team is always happy to help, please send us an enquiry.










