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Thread: switch from log to one piece intake.

  1. #1
    Supporting Member Turbo Mopar Contributor
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    switch from log to one piece intake.

    Has any tried to swap the log for a one piece (or 2 piece) intake manifold without changing turbo or removing head??
    I am expecting to change the tune on the LM as well.
    Just looking for a quick solution until the springtime.
    Thanks
    Regards,
    Miles

    DD '87 Sundance T1, SLH with rear disks
    '87 CSX #432 2.5 CB TII, SLH

  2. #2
    Hybrid booster
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    Re: switch from log to one piece intake.

    I remember the turbo needs to come off to get to the intake bolts.

    for the hour it takes to remove the cylinder head its not really worth it.
    \

  3. #3
    Supporting Member Turbo Mopar Contributor
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    Re: switch from log to one piece intake.

    Quote Originally Posted by masterjr33 View Post
    I remember the turbo needs to come off to get to the intake bolts.

    for the hour it takes to remove the cylinder head its not really worth it.
    \
    I have not taken the head off this car since 1988. I just wanted to minimize the surprises, like rusted tight oil and coolant lines.
    Maybe just put up with the PITA AIS until I get the new engine assembled.
    Regards,
    Miles

    DD '87 Sundance T1, SLH with rear disks
    '87 CSX #432 2.5 CB TII, SLH

  4. #4
    Supporting Member Turbo Mopar Contributor zin's Avatar
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    Re: switch from log to one piece intake.

    I don't think it can be done without having first made clearance for a thin-walled socket to get the bolts on/off the manifold... If you do try it and are successful, please detail how you did it! :-)

    Mike
    "The Constitution is not an instrument for the government to restrain the people, it is an instrument for the people to restrain the government - lest it come to dominate our lives and interests." - Patrick Henry

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  5. #5
    turbo addict
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    Re: switch from log to one piece intake.

    yeah , no .. you HAVE to remove the turbo and manifold first

    the intake bolts back out into the "crotch" of the exhaust manifold above the turbo (cyl 3&4) and there's only about 1/4 inch of space above the bolt heads - not enough to back the bolts out and usually not enough to get the wrench in either

    do you have the correct bolts for the one piece - log , one piece and two piece differ - I forget exactly how
    all are different ? or two are the same ?

  6. #6
    Supporting Member Turbo Mopar Contributor zin's Avatar
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    Re: switch from log to one piece intake.

    It's coming back to me now, I set mine up so I could do the intake without having to take the turbo off, but I had to make some clearance on the manifolds and replace the regular bolts with socket head screws/bolts with washers in order to make it possible.

    Did it probably 8+ years ago (hence the fuzzy memory) and it was on the engine stand at the time...

    Mike
    "The Constitution is not an instrument for the government to restrain the people, it is an instrument for the people to restrain the government - lest it come to dominate our lives and interests." - Patrick Henry

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  7. #7
    boostaholic Turbo Mopar Contributor
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    Re: switch from log to one piece intake.

    Plus, you will have to clearance the turbo flange on the exhaust manifold anyways.

    On the TII & 88+ TI, there is a notch in the top of the turbo flange to clear the #3 intake runner.

  8. #8
    Super Moderator Turbo Mopar Staff contraption22's Avatar
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    Re: switch from log to one piece intake.

    Physical barriers aside, this would also mean re-using the manifold-to-head gasket. Not a good idea imho.
    Mike Marra
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  9. #9
    boostaholic Turbo Mopar Contributor
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    Re: switch from log to one piece intake.

    Quote Originally Posted by contraption22 View Post
    Physical barriers aside, this would also mean re-using the manifold-to-head gasket. Not a good idea imho.
    Very true!!!

  10. #10
    turbo addict
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    Re: switch from log to one piece intake.

    I have taken of a 2 piece intake manifold off the car with turbo in place, that car had a TBI turbo header so the turbo hangs low.

    I don't see how you can take off the intake manifold bolts with the turbo and exhaust manifold in place. Log manifold maybe, but no way with the one piece or two piece intake manifold.

  11. #11
    Supporting Member Turbo Mopar Contributor
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    Re: switch from log to one piece intake.

    Thanks Guys
    Regards,
    Miles

    DD '87 Sundance T1, SLH with rear disks
    '87 CSX #432 2.5 CB TII, SLH

  12. #12
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    Re: switch from log to one piece intake.

    Quote Originally Posted by chromguy View Post
    I have not taken the head off this car since 1988. I just wanted to minimize the surprises, like rusted tight oil and coolant lines.
    Maybe just put up with the PITA AIS until I get the new engine assembled.
    That would be my suggestion. I just built a entire spare top end. head to turbo to valve cover. swapped it onto my fresh short block when i got it back from the machine shop. everything new and nice.

  13. #13
    Slugmobile & MeanMini Caretaker Turbo Mopar Contributor wheming's Avatar
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    Re: switch from log to one piece intake.

    Quote Originally Posted by chromguy View Post
    I have not taken the head off this car since 1988. I just wanted to minimize the surprises, like rusted tight oil and coolant lines.
    Maybe just put up with the PITA AIS until I get the new engine assembled.
    Sorry in all the other dealings i missed that you asked for help!
    I would recommend trying to do things once. It is usually easier, but takes longer. I can't stand having to redo work.
    And like Mike said, you'll need to come quite apart to get s new gasket in there also.
    Wayne H.

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