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Most NASCAR race teams build their own engines. Some smaller teams lease engines from a team that builds engines. Building your own engines can allow a team to customize their car to their drivers style and abilities. But teams do not have free reign when it comes to building their engines. NASCAR has strict rules and guidlines that the teams must follow when it comes to the engines.

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11y ago

358 cubic inch overhead valve v8. Each car make has its on engine.

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Q: What kind of motor do they run in NASCAR?
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