Mazda 20 LF Specs
Mazda 20 LF engine specs: 122 ci (1.999L), 4-cylinder, 3.4449" bore x 3.2717" stroke, 10.8:1 compression.
Dimensions
| Displacement | 122 ci / 1.999 L |
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| Bore | 3.4449" |
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| Stroke | 3.2717" |
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| Cylinders | 4 |
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| Compression ratio | 10.8:1 |
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| Bore/stroke ratio | 1.053 |
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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 | 158 hp |
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What these numbers mean
| Bore/stroke character | 1.053 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
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| Mean piston speed at 6,000 RPM | 3,272 ft/min — conservative for a street engine |
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| Displacement per cylinder | 30.5 ci |
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| Static compression | 10.8:1 — in the range that usually runs on pump premium |
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