See other engines in this family
Chevrolet LH7 specs: 98 ci (1.6L) 4-cylinder, 3.138 x 3.154 in (79.7 x 80.1 mm) bore and stroke. Rated 137 hp, 2017–2019. Used in the Chevrolet Cruze.
The Chevrolet 98ci (LH7) is close to square: 3.1378" bore against 3.1535" stroke, within 0.5%, which splits the difference between a high-revving layout and a torque layout. The 3.1535" 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 24.5 ci (401 cc).
It is one of 5 engines in the Chevrolet 98ci family, all of them 98 ci — the differences between them are in compression, heads and rating, not displacement. 3 factory variants share these dimensions, rated at 137 hp across 2017–2019.
| Displacement | 98 ci / 1.6 L |
|---|---|
| Bore | 3.1378" |
| Stroke | 3.1535" |
| Cylinders | 4 |
| Configuration | I4 |
| Bore/stroke ratio | 0.995 |
| Fuel type | diesel |
|---|---|
| Advertised HP | 137 hp |
| Years | 2017–2019 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 2018 | LH7 net | 137 @ 3750 * | 240 lb-ft @ 2000 * | — |
| 2019 | LH7 net | 137 @ 3750 * | 240 lb-ft @ 2000 * | — |
Factory specification sheet. * Not yet cross-verified.
| Bore/stroke character | 0.995 — square — bore and stroke are within 5%, a balanced compromise |
|---|---|
| Mean piston speed at 6,000 RPM | 3,154 ft/min — conservative for a street engine |
| Displacement per cylinder | 24.5 ci |
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 |
|---|---|---|
| 2017 | 137 hp | LH7 |
| 2018 | 137 hp | LH7 |
| 2019 | 137 hp | LH7 |
3 factory vehicles, 2017–2019. Each year opens that model's engine table.