Ford 1973 200 84HP Specs
Ford 1973 200 84HP engine specs: 200 ci (3.3L), 6-cylinder, 3.684" bore x 3.126" stroke, 9.38:1 compression.
Dimensions
| Displacement | 200 ci / 3.3 L |
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| Bore | 3.684" |
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| Stroke | 3.126" |
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| Cylinders | 6 |
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| Configuration | I6 |
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| Compression ratio | 9.38:1 |
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| Rod length | 4.715" |
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| Rod ratio | 1.508 |
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| Bore/stroke ratio | 1.179 |
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| Piston deck clearance | 0.012" |
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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 | 84 hp |
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| Years | 1973 |
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What these numbers mean
| Bore/stroke character | 1.179 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
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| Mean piston speed at 6,000 RPM | 3,126 ft/min — conservative for a street engine |
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| Rod ratio | 1.508 — short — more side loading and piston dwell at TDC, typical of stroker combinations |
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| Displacement per cylinder | 33.3 ci |
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| Static compression | 9.38:1 — low by modern standards, generally happy on regular pump fuel |
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Cylinder head
| Intake valve diameter | 1.66" |
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| Exhaust valve diameter | 1.399" |
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| Chamber volume | 48.32 cc |
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| Rocker ratio | 1.5:1 |
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| Lifter type | hydraulic |
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Similar engines
Source: NHRA blueprints — nhra.net blueprints
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