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how hard woud it be to swap in a 3.4 dohc/3500/3.9

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  • how hard woud it be to swap in a 3.4 dohc/3500/3.9

    my buddy has a 2004 cavalier with the ecotec 4 cylinder & a 5 speed trans & he wants to swap in a 3.4 dohc, 3500, or a 3.9 vvt in but keep the 5 speed-will any of these engines bolt up to his trans or will he need a dif one-also how hard the motor/trans mounts be to fab up or are there any he could get that would bolt right up?

  • #2
    Originally posted by no_doz View Post
    my buddy has a 2004 cavalier with the ecotec 4 cylinder & a 5 speed trans & he wants to swap in a 3.4 dohc, 3500, or a 3.9 vvt in but keep the 5 speed-will any of these engines bolt up to his trans or will he need a dif one-also how hard the motor/trans mounts be to fab up or are there any he could get that would bolt right up?
    Try the V6Z24 forum for info on this one, and no the Eco tranny will not bolt to any of those engines.

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    • #3
      I would just build up the ecotech motor, and call it a day. You can order everything you need to make that engine into a 1200hp beast if you so desired. What are his reasons for wanting to go v6? Don't get me wrong I love v6, but the ecotech can be built respectible and sound awesome.
      98 camaro swapping in lz9 th400 setup
      LZ9 specs: (Subject to Change work in progress)
      4.0L(after bore 3.917 and stroke 3.3485),carrillo sbc rods(narrowed),wiseco custom forged pistons 8.5:1 CR, TCE Double Roller timing chain, gen 3 cam, P&P heads, headers 1 3/4 primaries into 3-1 collector, and going to run ms2.

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