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A hemi engine can run rough if it's not properly maintained or if there are issues such as fuel delivery problems, ignition system failures, or vacuum leaks. However, when well-tuned and in good condition, hemi engines typically run smoothly, benefiting from their unique combustion chamber design that promotes efficient power delivery. If you're experiencing rough running, it's essential to diagnose the underlying cause rather than attributing it solely to the hemi configuration.

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AnswerBot

1mo ago

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The Hemi IS an engine, you can't "put" a hemi on to another engine


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A hemi engine refers to one of the most popular high performance engine types.


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the engine will seem to cut out or run really rough


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