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Chevrolet LCV specs: 150 ci (2.5L) 4-cylinder, 3.465 x 4.00 in (88 x 101.6 mm) bore and stroke, 11.3:1 compression. Rated 197-200 hp, 2015–2022.
The Chevrolet Ecotec (LCV) is undersquare — the 4" stroke exceeds the 3.4646" bore by 13.4% — a layout that trades peak RPM for leverage and torque low in the range. The 4" stroke puts mean piston speed at 4,000 ft/min around 6,000 RPM, which is where a production bottom end is generally considered at its limit. Each of the 4 cylinders displaces 37.5 ci (615 cc).
11.3:1 on aluminum heads is high enough that pump premium or better is normally required.
It is one of 26 engines in the Ecotec family, the largest at 150 ci. 9 factory variants share these dimensions, rated from 197 to 200 hp across 2015–2022.
| Displacement | 150 ci / 2.5 L |
|---|---|
| Bore | 3.4646" |
| Stroke | 4" |
| Cylinders | 4 |
| Configuration | I4 |
| Compression ratio | 11.3:1 |
| Bore/stroke ratio | 0.866 |
| Block material | aluminum |
|---|---|
| Head material | aluminum |
| Valvetrain | DOHC |
| Fuel type | gas |
| Advertised HP | 197–200 hp |
| Years | 2015–2022 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 2015 | LCV net | 200 @ 6300 * | 191 lb-ft @ 4400 * | — |
| 2016 | LCV net | 197 @ 6300 * | 191 lb-ft @ 4400 * | — |
| 2016 | LCV net | 200 @ 6300 * | 191 lb-ft @ 4400 * | — |
| 2017 | LCV net | 200 @ 6300 * | 191 lb-ft @ 4400 * | — |
| 2018 | LCV net | 200 @ 6300 * | 191 lb-ft @ 4400 * | — |
| 2019 | LCV net | 200 @ 6300 * | 191 lb-ft @ 4400 * | — |
| 2020 | LCV net | 200 @ 6300 * | 191 lb-ft @ 4400 * | — |
| 2021 | LCV net | 200 @ 6300 * | 191 lb-ft @ 4400 * | — |
| 2022 | LCV net | 200 @ 6300 * | 191 lb-ft @ 4400 * | — |
Factory specification sheet. * Not yet cross-verified.
| Bore/stroke character | 0.866 — undersquare — stroke exceeds bore, which favours low-end torque |
|---|---|
| Mean piston speed at 6,000 RPM | 4,000 ft/min — in the range typical of performance street engines |
| Displacement per cylinder | 37.5 ci |
| Static compression | 11.3:1 — high enough that pump premium or better is normally required |
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 |
|---|---|---|
| 2015 | 200 hp | LCV |
| 2016 | 197 hp | LCV |
| 2016 | 200 hp | LCV |
| 2017 | 200 hp | LCV |
| 2018 | 200 hp | LCV |
| 2019 | 200 hp | LCV |
| 2020 | 200 hp | LCV |
| 2021 | 200 hp | LCV |
| 2022 | 200 hp | LCV |
2 factory vehicles, 2015–2022. Each year opens that model's engine table.