Plymouth 25 K I4 Specs
Plymouth 25 K I4 engine specs: 153 ci (2.5L), 4-cylinder, 3.4449" bore x 4.0945" stroke, 9:1 compression.
Dimensions
| Displacement | 153 ci / 2.5 L |
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| Bore | 3.4449" |
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| Stroke | 4.0945" |
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| Cylinders | 4 |
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| Compression ratio | 9:1 |
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| Bore/stroke ratio | 0.841 |
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Construction
| Block material | cast iron |
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| Head material | aluminum |
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| Valvetrain | SOHC |
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| Fuel type | gas |
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| Advertised HP | 100 hp |
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What these numbers mean
| Bore/stroke character | 0.841 — undersquare — stroke exceeds bore, which favours low-end torque |
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| Mean piston speed at 6,000 RPM | 4,095 ft/min — in the range typical of performance street engines |
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| Displacement per cylinder | 38.3 ci |
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| Static compression | 9:1 — low by modern standards, generally happy on regular pump fuel |
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Vehicles (6)
- Acclaim
- Sundance
- Voyager
- Plymouth Acclaim
- Plymouth Sundance
- Plymouth Voyager
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