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Jeep 1.3 GSE Turbo MultiAir specs: 80 ci (1.3L) 4-cylinder, 2.756 x 3.405 in (70 x 86.5 mm) bore and stroke, 10.5:1 compression. Rated 177 hp, 2019–2023.
The Jeep 1.3 GSE Turbo MultiAir is undersquare — the 3.4055" stroke exceeds the 2.7559" bore by 19.1% — a layout that trades peak RPM for leverage and torque low in the range. The 3.4055" stroke does not reach 4,000 ft/min of mean piston speed until about 7,050 RPM, so piston speed is not what limits this engine's revs — valvetrain and breathing are. Each of the 4 cylinders displaces 20.0 ci (328 cc).
10.5:1 is in the range that usually runs on pump premium.
5 factory variants share these dimensions, rated at 177 hp across 2019–2023.
| Displacement | 80 ci / 1.3 L |
|---|---|
| Bore | 2.7559" |
| Stroke | 3.4055" |
| Cylinders | 4 |
| Configuration | I4 |
| Compression ratio | 10.5:1 |
| Bore/stroke ratio | 0.809 |
| Fuel type | gas |
|---|---|
| Redline | 6,500 rpm (factory limit) |
| Advertised HP | 177 hp |
| Years | 2019–2023 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 2019 | net | 177 @ 5750 | 200 lb-ft @ 1750 | — |
| 2020 | net | 177 @ 5750 | 210 lb-ft @ 1750 | — |
| 2021 | net | 177 @ 5750 | 210 lb-ft @ 1750 | — |
| 2022 | net | 177 @ 5750 | 210 lb-ft @ 1750 | — |
| 2023 | net | 177 @ 5750 | 210 lb-ft @ 1750 | — |
Factory specification sheet.
| Bore/stroke character | 0.809 — undersquare — stroke exceeds bore, which favours low-end torque |
|---|---|
| Mean piston speed at 6,000 RPM | 3,406 ft/min — conservative for a street engine |
| Displacement per cylinder | 20.0 ci |
| Static compression | 10.5:1 — 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 |
|---|---|---|
| 2019 | 177 hp | 1.3 GSE Turbo MultiAir |
| 2020 | 177 hp | 1.3 GSE Turbo MultiAir |
| 2021 | 177 hp | 1.3 GSE Turbo MultiAir |
| 2022 | 177 hp | 1.3 GSE Turbo MultiAir |
| 2023 | 177 hp | 1.3 GSE Turbo MultiAir |
1 factory vehicle, 2019–2023. Each year opens that model's engine table.