GMC 194 Specs
GMC 194 engine specs: 194 ci (3.2L), 6-cylinder, 3.625" bore x 3.2" stroke, 8.5:1 compression.
Dimensions
| Displacement | 194 ci / 3.2 L |
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| Bore | 3.625" |
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| Stroke | 3.2" |
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| Cylinders | 6 |
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| Compression ratio | 8.5:1 |
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| Bore/stroke ratio | 1.133 |
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| Piston deck clearance | 0.256" |
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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 hp |
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What these numbers mean
| Bore/stroke character | 1.133 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
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| Mean piston speed at 6,000 RPM | 3,200 ft/min — conservative for a street engine |
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| Displacement per cylinder | 32.3 ci |
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| Static compression | 8.5:1 — low by modern standards, generally happy on regular pump fuel |
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Cylinder head
| Intake valve diameter | 1.5" |
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| Exhaust valve diameter | 1.313" |
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| Chamber volume | 42.6 cc |
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| Rocker ratio | 1.6:1 |
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| Lifter type | hydraulic |
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Vehicles (3)
- Chevrolet Chevy II
- Chevrolet Nova
- Pontiac Tempest
Similar engines
Source: NHRA blueprints — nhra.net blueprints
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