Nissan RB 8.5:1 Specs
Nissan RB · 3.071" × 2.744" · 8.5:1 engine specs: 121.8 ci (2L), 6-cylinder, 3.0709" bore x 2.7441" stroke, 8.5:1 compression.
Dimensions
| Displacement | 121.8 ci / 2 L |
|---|
| Bore | 3.0709" |
|---|
| Stroke | 2.7441" |
|---|
| Cylinders | 6 |
|---|
| Compression ratio | 8.5:1 |
|---|
| Bore/stroke ratio | 1.119 |
|---|
Construction
| Block material | cast iron |
|---|
| Head material | aluminum |
|---|
| Valvetrain | SOHC |
|---|
| Fuel type | gas |
|---|
| Advertised HP | 168–212 hp |
|---|
What these numbers mean
| Bore/stroke character | 1.119 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
|---|
| Mean piston speed at 6,000 RPM | 2,744 ft/min — conservative for a street engine |
|---|
| Displacement per cylinder | 20.3 ci |
|---|
| Static compression | 8.5:1 — low by modern standards, generally happy on regular pump fuel |
|---|
Run the numbers for this engine
Each link opens the calculator with this engine's specs already filled in.
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 |
|---|
| — | 168 hp | RB20ET |
| — | 212 hp | RB20DET |
Vehicles (5)
- Nissan Skyline R31
- Nissan Laurel C32
- Nissan Skyline R32 GTS-t
- Nissan Laurel C33
- Nissan Cefiro A31
Similar engines
← All RB engines