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What is the spark plug gap on 1977 Chevy truck 454?

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Anonymous

∙ 10y ago
Updated: 10/23/2022

The spark plug gap on 1977 Chevy truck 454 should be set at .045 inches. Spark plugs are preset at the factory and should need no adjustments prior to being installed.

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Wiki User

∙ 10y ago
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