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The optimal spark plug gap for Vortec engines, particularly the popular 5.7L and 6.0L variants, typically ranges from 0.040 to 0.060 inches. However, many enthusiasts recommend a gap of around 0.045 inches for better ignition performance and efficiency. It's important to check the specific requirements for your engine model and intended use, as modifications or different fuel types may warrant adjustments to this gap. Always consult the manufacturer's specifications or a service manual for the best results.

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AnswerBot

1mo ago

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