Got A V-8-6-4 For My 82 Coupe Now?
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500, 472, 425, 368 Discussion, Got A V-8-6-4 For My 82 Coupe Now? in Cadillac Engine Technical Discussion; Ok The 78 Parts Car Feel Throught, So I Picked Up The 81! My Questions Are 1. Are There Any ...
  1. #1
    PACADDYMAN is offline Cadillac Owners Member
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    Got A V-8-6-4 For My 82 Coupe Now?

    Ok The 78 Parts Car Feel Throught, So I Picked Up The 81! My Questions Are
    1. Are There Any Other Items From Car That Need To Be Swapped To Use The V-8-6-4 Electronics Wise?
    2. Can That System Be Disabled And If So Would That Make A More Reliable Motor?
    3. Is It Better To Run The Fuel Injection Or Get A 4bbl And Run That?
    4. I Already Got The Info On The Transmission And Drivshaft Anything Else I Have Forgotten.

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  3. #2
    Night Wolf's Avatar
    Night Wolf is offline Cadillac Owners 10000+ Posts
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    Re: Got A V-8-6-4 For My 82 Coupe Now?

    the 1982 has the 368 in it as well? if so it should be a near bolt in swap.

    1) no, but I would persoanlly cut the wire going from the transmission that tells the engine to kick back some cylinders, then just wire up all the selonoids to a simple on/off rocker switch and mount that on the dash somewhere, so you can choose betwen V4/V8 only and when you want, not when the 25 year old computer wants. Trust me, it'll be far better for you.

    2) yes it can, but I woudln't say it would be more reliable.

    3)depends, if all the factory FI stuff is working and there is no problem with it... why dump it? but a carb could go right on for you.

    4) not really... is the '82 HT4100...sorry brain fart... if it is, then the swap will be a bit more involved, and I would honestly go with a carb, but defintly keep the cylinder deactiveation feature... I mean, thats just freakin cool

  4. #3
    PACADDYMAN is offline Cadillac Owners Member
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    Re: Got A V-8-6-4 For My 82 Coupe Now?

    Well No Actually I Had A V-6 In The 1981 And I Had Already Gotten Great Info From The Ape Man On Swapping Out The Th200 For The Th400 In The 1981 Along With The 368. So Do I Have To Pull The Computer From The Donor Car As Well??? That Is Pretty Much Why I Suggested Swapping Back To A Carb, And Just Running The Old 4 Wire Setup, Power, Ground, On, And Start???

    I Guess My First Plan Of Attack Is To Drive The 1981 And Check Over The Frame And All May Just Swap The Wheels & Radio Out Of The 1982 And Start Selling Parts If You Know What I Mean. It Is A Shame Because The 1982 Has Not One Spot Of Rust Anywhere On It!!! And That Is Also My Big Worry Because The 1981 Was Used For The Past 5 Yrs By The Grandfather Who Started The Farm To Run Around And Check On The Grand Kids Now Running The Operations, So It Got No Inspections Or Whatnot???

  5. #4
    Night Wolf's Avatar
    Night Wolf is offline Cadillac Owners 10000+ Posts
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    Re: Got A V-8-6-4 For My 82 Coupe Now?

    ahhh, please don't capitalize the first letter in each word

    If the car that you are swapping the engine into did not have the same engine... then save yourself the trouble and use a carburator.

  6. #5
    I~LUV~Caddys8792's Avatar
    I~LUV~Caddys8792 is offline Moderator
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    Re: Got A V-8-6-4 For My 82 Coupe Now?

    Quote Originally Posted by Night Wolf
    ahhh, please don't capitalize the first letter in each word


    holy crap! I Do That Sometimes Also! hahaha!

  7. #6
    Night Wolf's Avatar
    Night Wolf is offline Cadillac Owners 10000+ Posts
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    Re: Got A V-8-6-4 For My 82 Coupe Now?

    I dunno, its werid... makes my mind go crazy, I start to just look at the text as a big blob, then don't want to finish reading it... but I have to... because I started to.... ahhh

    yes, I am crazy....

  8. #7
    PACADDYMAN is offline Cadillac Owners Member
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    Re: Got A V-8-6-4 For My 82 Coupe Now?

    Actually If You Must Know I Typed It All In Caps But It Changed It To The First Letter Only Caps When I Hit Submit... Maybe They Had Too Many Compliants About All Caps?

  9. #8
    Night Wolf's Avatar
    Night Wolf is offline Cadillac Owners 10000+ Posts
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    Re: Got A V-8-6-4 For My 82 Coupe Now?

    oh....

    typing in all caps is worse tho... it is basically the internet version of screaming

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