Ford 1977 400 173HP Specs
Ford 1977 400 173HP engine specs: 400 ci (6.6L), 8-cylinder, 4" bore x 4" stroke, 7.772:1 compression.
Dimensions
| Displacement | 400 ci / 6.6 L |
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| Bore | 4" |
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| Stroke | 4" |
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| Cylinders | 8 |
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| Configuration | V8 |
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| Compression ratio | 7.772:1 |
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| Rod length | 6.58" |
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| Rod ratio | 1.645 |
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| Bore/stroke ratio | 1 |
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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 | 173 hp |
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| Years | 1977 |
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What these numbers mean
| Bore/stroke character | 1.000 — square — bore and stroke are within 5%, a balanced compromise |
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| Mean piston speed at 6,000 RPM | 4,000 ft/min — in the range typical of performance street engines |
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| Rod ratio | 1.645 — moderate — the range most production V8s fall in |
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| Displacement per cylinder | 50.0 ci |
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| Static compression | 7.772:1 — low by modern standards, generally happy on regular pump fuel |
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Cylinder head
| Intake valve diameter | 2.041" |
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| Exhaust valve diameter | 1.655" |
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