Honda H23A Specs
Honda H23A engine specs: 139 ci (2.3L), 4-cylinder, 3.4252" bore x 3.7402" stroke, 9.8:1 compression.
Dimensions
| Displacement | 139 ci / 2.3 L |
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| Bore | 3.4252" |
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| Stroke | 3.7402" |
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| Cylinders | 4 |
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| Compression ratio | 9.8:1 |
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| Bore/stroke ratio | 0.916 |
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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 | 160 hp |
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What these numbers mean
| Bore/stroke character | 0.916 — undersquare — stroke exceeds bore, which favours low-end torque |
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| Mean piston speed at 6,000 RPM | 3,740 ft/min — in the range typical of performance street engines |
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| Displacement per cylinder | 34.8 ci |
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| Static compression | 9.8:1 — in the range that usually runs on pump premium |
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Vehicles (5)
- Honda Prelude Si (JDM)
- Honda Accord SiR (JDM)
- Honda Accord 2.3i (EDM)
- Honda Prelude 2.3i (EDM)
- Honda Prelude Si (USDM)
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