Chevrolet LS 9.1:1 Specs
Chevrolet LS · 4.065" × 3.622" · 9.1:1 engine specs: 376 ci (6.2L), 8-cylinder, 4.065" bore x 3.622" stroke, 9.1:1 compression.
Dimensions
| Displacement | 376 ci / 6.2 L |
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| Bore | 4.065" |
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| Stroke | 3.622" |
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| Cylinders | 8 |
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| Compression ratio | 9.1:1 |
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| Bore/stroke ratio | 1.122 |
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Construction
| Block material | aluminum |
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| Head material | aluminum |
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| Valvetrain | OHV |
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| Fuel type | gas |
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| Advertised HP | 556–638 hp |
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What these numbers mean
| Bore/stroke character | 1.122 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
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| Mean piston speed at 6,000 RPM | 3,622 ft/min — in the range typical of performance street engines |
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| Displacement per cylinder | 47.0 ci |
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| Static compression | 9.1:1 — low by modern standards, generally happy on regular pump fuel |
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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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| — | 556 hp | LSA |
| — | 638 hp | LS9 |
Vehicles (4)
- Chevrolet Corvette C6 ZR1
- Cadillac CTS-V (Gen 2)
- Chevrolet Camaro ZL1 (Gen 5)
- Holden Special Vehicles GTS
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