Removing smog equipment on 68 472
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500, 472, 425, 368 Discussion, Removing smog equipment on 68 472 in Cadillac Engine Discussion; I would like to remove all the smog crap from my 68 472. I bought a new Edlebrock manifold so ...
  1. #1
    Hellbilly04 is offline Cadillac Owners Member
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    Removing smog equipment on 68 472

    I would like to remove all the smog crap from my 68 472. I bought a new Edlebrock manifold so that takes care rats nest on top, what I'm stumped on here is the tube comes out of both heads & runs along the front of the motor. Can I just remove this tube & plug the holes off ?

    Thanks for any help.

    Hellbilly04.


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  3. #2
    terrible one's Avatar
    terrible one is offline Banned
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    Re: Removing smog equipment on 68 472

    You still have an AIR pump hooked up? The tubes go to that. Yes, you cna remove them and plug with freeze plugs.

  4. #3
    Sasquatch's Avatar
    Sasquatch is offline Cadillac Owners Fanatic
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    Re: Removing smog equipment on 68 472

    Your AIR pump is also your belt tensioner. There is some pully modification needed. Check this thread on the subject.


    http://www.cadillacforums.com/forums...r+pump+removal

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  6. #4
    Hellbilly04 is offline Cadillac Owners Member
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    Re: Removing smog equipment on 68 472

    Thanks guys for the help...

    HB04

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