Easier to swap in a used engine or do a head gasket replacement?

Discussion in 'Gen 3 Prius Technical Discussion' started by weapon, Jul 9, 2026 at 9:37 AM.

  1. weapon

    weapon Junior Member

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    Looks so simple to swap in a used engine vs the head gasket.

    Am I correct?

    What are some of the pitfalls of a swap?
     
    #1 weapon, Jul 9, 2026 at 9:37 AM
  2. JC91006

    JC91006 Senior Member

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    a pitfall would be the used engine you put in will have more problems than the one you're replacing. But since you have a 2010, considered the worse engine year for 3rd generation, it probably would benefit you more than the potential pitfall to swap engine
     
    #2 JC91006, Jul 9, 2026 at 10:44 AM
    weapon likes this.
  3. weapon

    weapon Junior Member

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    Yes that is a major concern I do have right off the bat. I have been watching the head gasket replacement videos and it seems really labor intensive and lots of places for user errors if not careful.

    When I did the manifold/egr swap, I was looking at the engine and it seemed like a relatively simple engine swap. It just seems to be a very well enclosed process. I would for sure try to get a low milage 2015 replacement.
     
    #3 weapon, Jul 9, 2026 at 10:51 AM
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