See other engines in this family
Volvo B16B specs: 96 ci 4-cylinder, 79.4 x 80 mm (3.1248 x 3.1496 in) bore and stroke, 8.2:1 compression. Rated 85 hp, 1959–1961. Used in the Volvo Amazon.
The Volvo B16B is close to square: 3.1248" bore against 3.1496" stroke, within 0.8%, which splits the difference between a high-revving layout and a torque layout. The 3.1496" stroke does not reach 4,000 ft/min of mean piston speed until about 7,600 RPM, so piston speed is not what limits this engine's revs — valvetrain and breathing are. Each of the 4 cylinders displaces 24.0 ci (393 cc).
8.2:1 is low by modern standards and generally happy on regular pump fuel.
3 factory variants share these dimensions, rated at 85 hp across 1959–1961.
| Displacement | 96 ci |
|---|---|
| Bore | 3.1248" |
| Stroke | 3.1496" |
| Cylinders | 4 |
| Configuration | I4 |
| Compression ratio | 8.2:1 |
| Bore/stroke ratio | 0.992 |
| Fuel type | gas |
|---|---|
| Advertised HP | 85 hp |
| Years | 1959–1961 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 1960 | B16B gross | 85 @ 5500 | 87 lb-ft @ 3500 | 8.2:1 |
Factory specification sheet.
| Bore/stroke character | 0.992 — square — bore and stroke are within 5%, a balanced compromise |
|---|---|
| Mean piston speed at 6,000 RPM | 3,150 ft/min — conservative for a street engine |
| Displacement per cylinder | 24.0 ci |
| Static compression | 8.2:1 — low by modern standards, generally happy on regular pump fuel |
Each link opens the calculator with this engine's specs already filled in.
These records share identical bore, stroke, displacement and compression. They differ by model year and factory power rating.
| Year | Advertised HP | Code |
|---|---|---|
| 1959 | 85 hp | B16B |
| 1960 | 85 hp | B16B |
| 1961 | — | B16B |
1 factory vehicle, 1959–1961. Each year opens that model's engine table.