Mercury Essex 9:1 Specs
Mercury Essex · 3.811" × 3.386" · 9:1 engine specs: 232 ci (3.8L), 6-cylinder, 3.811" bore x 3.3858" stroke, 9:1 compression.
Dimensions
| Displacement | 232 ci / 3.8 L |
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| Bore | 3.811" |
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| Stroke | 3.3858" |
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| Cylinders | 6 |
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| Compression ratio | 9:1 |
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| Bore/stroke ratio | 1.126 |
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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 | 120–140 hp |
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What these numbers mean
| Bore/stroke character | 1.126 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
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| Mean piston speed at 6,000 RPM | 3,386 ft/min — conservative for a street engine |
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| Displacement per cylinder | 38.7 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 (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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| — | 120 hp | 3.8L V6 |
| — | 120 hp | 3.8L, 232, 3.8L V6 |
| — | 140 hp | 3.8L, 232 OHV |
Vehicles (5)
- Mercury Cougar
- Mercury Sable
- Mercury Grand Marquis
- Mercury Monterey
- Mercury Topaz
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