**Cubic Inches vs. Liters**

**It can often be difficult to compare engine displacements between classic
cars, measured in cubic inches, and newer cars, measured in liters. Since
one liter is 1000 cubic centimeters, and there are 2.54 centimeters to the inch,
conversion can be done simply with a calculator.**

**To find liters, divide cubic inches by 61**

**To find cubic inches, multiply liters by 61**

**Note that often manufacturers fudge a bit on displacement numbers, and these
conversion factors are rounded, so your conversions might not match theirs exactly.**

**Here are the conversions on some common Mustang engines:**

Cubic Inches |
Liters |

170 | 2.8 |

200 | 3.3 |

250 | 4.1 |

260 | 4.3 |

289 | 4.7 |

302 | 5.0 |

351 | 5.8 |

390 | 6.4 |

427/428/429 | 7.0 |

Liters |
Cubic Inches |

2.3 | 140 |

2.8 | 171 |

3.8 | 232 |

4.6 | 281 |

5.0 | 305 |

5.4 | 329 |

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