Ford Power Stroke 7.3 17.5:1 Specs
Ford Power Stroke 7.3 · 4.051" × 4.358" · 17.5:1 engine specs: 444 ci (7.3L), 8-cylinder, 4.0512" bore x 4.3583" stroke, 17.5:1 compression.
Dimensions
| Displacement | 444 ci / 7.3 L |
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| Bore | 4.0512" |
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| Stroke | 4.3583" |
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| Cylinders | 8 |
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| Compression ratio | 17.5:1 |
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| Bore/stroke ratio | 0.93 |
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Construction
| Block material | cast iron |
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| Head material | cast iron |
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| Valvetrain | OHV |
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| Fuel type | diesel |
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| Advertised HP | 210–250 hp |
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What these numbers mean
| Bore/stroke character | 0.930 — undersquare — stroke exceeds bore, which favours low-end torque |
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| Mean piston speed at 6,000 RPM | 4,358 ft/min — in the range typical of performance street engines |
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| Displacement per cylinder | 55.5 ci |
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| Static compression | 17.5:1 — high enough that pump premium or better is normally required |
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Variants sharing these dimensions (3)
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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| — | 210 hp | T444E (early) |
| — | 235 hp | T444E (late) |
| — | 250 hp | T444E (late HO) |
Vehicles (5)
- Ford F-Series (F-250, F-350)
- Ford E-Series (E-350, E-450)
- Ford Excursion (early production)
- Ford F-Series Super Duty (F-250, F-350, F-450, F-550)
- Ford Excursion
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