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Chevrolet LE2 specs: 85 ci (1.4L) 4-cylinder, 2.913 x 3.201 in (74 x 81.3 mm) bore and stroke, 10:1 compression. Rated 153 hp, 2016–2019.
The Chevrolet Ecotec (LE2) is undersquare — the 3.2008" stroke exceeds the 2.9134" bore by 9.0% — a layout that trades peak RPM for leverage and torque low in the range. The 3.2008" stroke does not reach 4,000 ft/min of mean piston speed until about 7,500 RPM, so piston speed is not what limits this engine's revs — valvetrain and breathing are. Each of the 4 cylinders displaces 21.3 ci (348 cc).
10:1 on aluminum heads is in the range that usually runs on pump premium; aluminum sheds heat faster than iron, which makes the same number a little more forgiving.
It is one of 26 engines in the Ecotec family, sitting between the 61 ci and 150 ci members. 4 factory variants share these dimensions, rated at 153 hp across 2016–2019.
| Displacement | 85 ci / 1.4 L |
|---|---|
| Bore | 2.9134" |
| Stroke | 3.2008" |
| Cylinders | 4 |
| Configuration | I4 |
| Compression ratio | 10:1 * |
| Bore/stroke ratio | 0.91 |
* Compression ratio from a single source; not yet cross-verified.
| Block material | aluminum |
|---|---|
| Head material | aluminum |
| Valvetrain | DOHC |
| Fuel type | gas |
| Advertised HP | 153 hp |
| Years | 2016–2019 |
| Bore/stroke character | 0.910 — undersquare — stroke exceeds bore, which favours low-end torque |
|---|---|
| Mean piston speed at 6,000 RPM | 3,201 ft/min — conservative for a street engine |
| Displacement per cylinder | 21.3 ci |
| Static compression | 10:1 — in the range that usually runs on pump premium |
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 |
|---|---|---|
| 2016 | 153 hp | LE2 |
| 2017 | 153 hp | LE2 |
| 2018 | 153 hp | LE2 |
| 2019 | 153 hp | LE2 |
1 factory vehicle, 2016–2019. Each year opens that model's engine table.