Northstar engine swap
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Cadillac Seville / Cadillac Eldorado Forum Discussion, Northstar engine swap in Past Cadillac Vehicle Discussion; Does anybody know if the engine out of a 1994 saville will fit a 1997 saville?...
  1. #1
    bikerbobby is offline Cadillac Owners Member
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    Northstar engine swap

    Does anybody know if the engine out of a 1994 saville will fit a 1997 saville?


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  3. #2
    curtc's Avatar
    curtc is offline Cadillac Owners Master
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    Re: Northstar engine swap

    IIRC GM switched to OBDII in 97, some may even have a hybrid OBDI/OBDII system for that year...I don't think a 94 N* will work in a 97 unfortunately but someone a bit more knowledgable will probably chime in and correct me if I am wrong.

  4. #3
    MoistCabbage's Avatar
    MoistCabbage is offline Cadillac Owners 10000+ Posts
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    There's a sticky on engine interchangeability in the Northstar forums.

    OBD II was introduced in '96.

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  6. #4
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: Northstar engine swap

    '94 is OBDI and the '97 is OBDII. Ain't gonna work.

  7. #5
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
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    Re: Northstar engine swap

    Basic answer: NO.

  8. #6
    N*Caddy's Avatar
    N*Caddy is offline Cadillac Owners Master
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    Re: Northstar engine swap

    The engine block will, nothing else is direct fit.

  9. #7
    bikerbobby is offline Cadillac Owners Member
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    Re: Northstar engine swap

    Why cant I just use my block and transfer all the parts from mine. Is there some motor mount issues or something like that?

  10. #8
    curtc's Avatar
    curtc is offline Cadillac Owners Master
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    Re: Northstar engine swap

    If your block is still good why are you swapping the engine???

  11. #9
    Ranger's Avatar
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    Re: Northstar engine swap

    Wait, what? You want to use YOUR block and swap the parts from YOUR engine back into it and reinstall it back into YOUR car? I know I must be missing something, but I reread post #7 four times and I still don't see it.

  12. #10
    MoistCabbage's Avatar
    MoistCabbage is offline Cadillac Owners 10000+ Posts
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    LOL! I can picture your eyes beginning to cross with confusion as you read that .

  13. #11
    curtc's Avatar
    curtc is offline Cadillac Owners Master
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    Re: Northstar engine swap

    Quote Originally Posted by MoistCabbage View Post
    LOL! I can picture your eyes beginning to cross with confusion as you read that .
    Mine did the exact same thing....What the?!?

  14. #12
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: Northstar engine swap

    It's a relief to know it's not just me.

  15. #13
    vincentm's Avatar
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    I cant brain, thinking is hurting

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