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Swap 3400 to the Pontiac Grand Prix 88 2.8

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  • Swap 3400 to the Pontiac Grand Prix 88 2.8

    Hi!
    My name is Siarhei and i'm novice on this forum.
    Sorry for the my english - it not so good as i want

    I have a Pontiac Grand Prix SE auto with a 2.8 v6 engine.

    This is the car photo before rebuild starting.



    Now the car is under reconstruction, but the old 2.8 engine is really bad... So i plan to swap new engine into the Pontiac. I founded a 3400 engine with transmission from the 2000 Chevrolet Impala.

    Refer to the Photo below:





    The engine is in good condition, so i believe the Pontiac with this engine could be the good project.

    As i can see from this thread somebody already did the same swap



    But i cannot find the details of this process.

    So maybe you can help me and say, what additional parts i need? Do i need a Impala harness and impala engine ECU? Is it possible to combine Pontiac harness with Impala engine ECU?

    Thanks!

  • #2
    You can splice the harnesses together to get the desired results, but you'll need both pinouts. Sounds be able to find those easily.

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