GMC Ecotec I4 10.4:1 Specs
GMC Ecotec I4 · 3.465" × 3.858" · 10.4:1 engine specs: 145 ci (2.4L), 4-cylinder, 3.4646" bore x 3.8583" stroke, 10.4:1 compression.
Dimensions
| Displacement | 145 ci / 2.4 L |
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| Bore | 3.4646" |
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| Stroke | 3.8583" |
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| Cylinders | 4 |
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| Compression ratio | 10.4:1 |
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| Bore/stroke ratio | 0.898 |
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Construction
| Block material | aluminum |
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| Head material | aluminum |
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| Valvetrain | DOHC |
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| Fuel type | gas |
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| Advertised HP | 177–180 hp |
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What these numbers mean
| Bore/stroke character | 0.898 — undersquare — stroke exceeds bore, which favours low-end torque |
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| Mean piston speed at 6,000 RPM | 3,858 ft/min — in the range typical of performance street engines |
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| Displacement per cylinder | 36.3 ci |
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| Static compression | 10.4:1 — in the range that usually runs on pump premium |
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Variants sharing these dimensions (2)
These records share identical bore, stroke, displacement and compression. They differ by model year and factory power rating.
| Year | Advertised HP | Code |
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| — | 177 hp | LE5 |
| — | 180 hp | LE9 |
Vehicles (7)
- Chevrolet Cobalt SS
- Pontiac G6
- Saturn Sky
- Chevrolet HHR
- Chevrolet Equinox
- GMC Terrain
- Buick LaCrosse
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← All Ecotec I4 engines