2010 Prius Engine Swap 1.8L to 1.5L?

Discussion in 'Gen 3 Prius Accessories and Modifications' started by DrekEvans, Oct 27, 2018.

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  1. DrekEvans

    DrekEvans New Member

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    Hey PriusChat,

    I have a 2010 Toyota Prius II and I slung a piston rod which blew a whole in my engine block. My engine is a 1.8L. I am in the market for a new engine, 1.8L cost 1300 and up. I found a 1.5L for a 2013 prius that cost $877. Can I put this 1.5L in my prius that has a 1.8L in it? If so will there be any set backs, issues, performance downgrades, or just anything in general that I should be concerned with? Thanks in advance.
     
    #1 DrekEvans, Oct 27, 2018
  2. bisco

    bisco cookie crumbler

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    unlikely. is that from a c?
     
    #2 bisco, Oct 27, 2018
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  3. DrekEvans

    DrekEvans New Member

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    Prius II Base
     
    #3 DrekEvans, Oct 27, 2018
  4. Raytheeagle

    Raytheeagle Senior Member

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    Welcome to Prius Chat (y).

    Been racing with the folks at nascar in your Prius :p?

    Sorry, based on your location that’s where that came from:cool:.

    Some real questions:
    • How many miles on your Prius?
    • Where did you find the 1.5 L engine?
    • Have you bought it yet?
    • Will you be doing the engine swap yourself?
    • Ever done serious DIY jobs before?
    The 1.5L engines were in the c as @bisco notes above, so I’d keep looking.

    Good luck and keep us posted (y).
     
    #4 Raytheeagle, Oct 27, 2018
  5. DrekEvans

    DrekEvans New Member

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    If pushing my little prius on the highway back and forth to college means NASCAR then yes lol. Btw I do live 20 minutes from the speedway.

    But to answer the questions. My prius has 156,000 miles.

    I found the 1.5L on automix

    I haven't purchased it yet

    Me and my dad will be doing the swap. I haven't done an engine swap before but my dad has done a couple. He's 1 of those jack of all trades guys. I have messed around a little with DIY with cars but nothing as extensive as a engine swap.
     
    #5 DrekEvans, Oct 27, 2018
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  6. Elektroingenieur

    Elektroingenieur Senior Member

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    You’d be taking a substantial compatibility risk: even if you could install a 1NZ-FXE engine and connect it to your car’s P410 hybrid transaxle, which is different from the P510 in a Prius c—and I have no idea if that’s possible—the 1NZ-FXE engine control module (ECM) may not work with the power management control ECU in your car, which has firmware that was written and tested to work with the 2ZR-FXE engine and its characteristics.

    Remember: a modern car, especially a hybrid vehicle, is a rolling collection of computer systems, sensors, and actuators that have to work together, as much as it is an automobile in the traditional sense.

    Even if it all could work, I imagine you’d have to spend much more than the difference in engine costs on the other parts that would have to be replaced or fabricated. Does the $877 engine come with an ECM, for example?
     
    #6 Elektroingenieur, Oct 27, 2018
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  7. JimboPalmer

    JimboPalmer Tsar of all the Rushers

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    The Prius C is an entirely different car, there is no interchangeability with the Prius.
     
    #7 JimboPalmer, Oct 27, 2018
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  8. Mendel Leisk

    Mendel Leisk Senior Member

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    One thing that's doable is to swap in a Gen 4 Prius engine, with some modifications. Have a look at the link:

    Swapping in a Gen 4 Prius' 2ZR Engine into the Prius v | PriusChat

    Better make some popcorn and find a comfy chair: there's 15 episodes, each about 20 minutes. The swap in the video is into a Prius v, but the principals are the same, and this is the second time he's done this swap: first time was on a regular, 3rd gen Prius.

    The main advantage over using a 3rd gen engine: 4th gen engines are lower miles, more prevalent, and cheaper, at least at present.
     
    #8 Mendel Leisk, Oct 28, 2018
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  9. Phil Yaden

    Phil Yaden Junior Member

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    Good information.... What years cover the 4th gen cover. You are correct 1.8L 2010 2011 engines are very expensive.
     
    #9 Phil Yaden, Nov 18, 2021
  10. nancytheprius

    nancytheprius Active Member

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    gen 3 is 2010-2015 and gen 4 starts at 2016
     
    #10 nancytheprius, Nov 18, 2021
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