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  1. M

    mercruiser 120 hp I/O

    I have a 120 horse merc in a 1974 larson boat I was told that it was a 153 ci chevy i was wantin to know if it would interchange with a newer 2.5 liter chevy motor
  2. M

    mercruiser 120 hp I/O

    I have a 1974 larson with a 120 merc in it that is locked up. What i need to know is if a lator model 2.5L out of a car would work as a replacment?
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