Nissan RB 9.5:1 Specs
Nissan RB · 3.071" × 2.744" · 9.5:1 engine specs: 121.8 ci (2L), 6-cylinder, 3.0709" bore x 2.7441" stroke, 9.5:1 compression.
Dimensions
| Displacement | 121.8 ci / 2 L |
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| Bore | 3.0709" |
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| Stroke | 2.7441" |
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| Cylinders | 6 |
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| Compression ratio | 9.5:1 |
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| Bore/stroke ratio | 1.119 |
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Construction
| Block material | cast iron |
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| Head material | aluminum |
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| Valvetrain | SOHC |
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| Fuel type | gas |
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| Advertised HP | 128–153 hp |
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What these numbers mean
| Bore/stroke character | 1.119 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
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| Mean piston speed at 6,000 RPM | 2,744 ft/min — conservative for a street engine |
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| Displacement per cylinder | 20.3 ci |
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| Static compression | 9.5:1 — in the range that usually runs on pump premium |
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Variants sharing these dimensions (2)
These records share identical bore, stroke, displacement and compression. They differ by model year and factory power rating.
| Year | Advertised HP | Code |
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| — | 128 hp | RB20E |
| — | 153 hp | RB20DE |
Vehicles (5)
- Nissan Skyline R31
- Nissan Laurel C32
- Nissan Cefiro A31
- Nissan Skyline R32
- Nissan Laurel C33
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