Mercury Windsor 9:1 Specs
Mercury Windsor · 4.000" × 3.000" · 9:1 engine specs: 302 ci (5L), 8-cylinder, 4" bore x 3" stroke, 9:1 compression.
Dimensions
| Displacement | 302 ci / 5 L |
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| Bore | 4" |
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| Stroke | 3" |
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| Cylinders | 8 |
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| Compression ratio | 9:1 |
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| Bore/stroke ratio | 1.333 |
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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 | gas |
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| Advertised HP | 150–225 hp |
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What these numbers mean
| Bore/stroke character | 1.333 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
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| Mean piston speed at 6,000 RPM | 3,000 ft/min — conservative for a street engine |
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| Displacement per cylinder | 37.8 ci |
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| Static compression | 9:1 — low by modern standards, generally happy on regular pump fuel |
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Variants sharing these dimensions (4)
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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| — | 150 hp | 302 EFI |
| — | 205 hp | 302 HO |
| — | 210 hp | 302 |
| — | 225 hp | 302 HO |
Vehicles (8)
- Cougar
- Grand Marquis
- Mountaineer
- Mercury Cougar
- Mercury Grand Marquis
- Mercury Mountaineer
- Mercury Capri
- Mercury Marquis
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