727 to A518 swap – a novice guide

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    Author Topic: 727 to A518 swap – a novice guide  (Read 282364 times)

    Offline Cudakiller70

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    Re: 727 to A518 swap – a novice guide
    « Reply #195 on: January 24, 2017 - 11:54:47 PM »
    Quote from: duodec on January 24, 2017 - 11:28:57 PM
    Got an NOS 3583188 waiting for my car since previous owner did some bad welding on the factory unit.

    The wings that bolt to the torsion bar mount members are 0.15" - 0.16"at the edges.  The two pieces that come back to hold the trans mount are 0.18" - 0.19" thick.  However all I have are calipers, not a micrometer, and the stamping likely distorted the edges enough to not get a truly accurate reading.  Of course no idea what grade of steel its made from either.

    Hope that helps.
    Close enough!
    1/8" = 0.125..... So the wings are slightly thicker than 1/8"

    3/16" = 0.1875.....are right at 3/16" thickness for two pieces to hold trans mount.

    Yup .. 3/16
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    Offline Mopar Mitch

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    Re: 727 to A518 swap – a novice guide
    « Reply #196 on: January 27, 2017 - 01:11:29 PM »
    I applaud the A518 swap!!!

    I'm considering a similar swap, but convenient now is the readily avlbl S/S 4L60 swap.   Any pros/cons between these two trans?  I know cost for the S/S 4L60 ends up around roughly $5000 by the time its all done.

    Performance?  Computers? etc?
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    Offline brads70

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    Re: 727 to A518 swap – a novice guide
    « Reply #197 on: February 01, 2017 - 09:23:46 PM »
    Quote from: Mopar Mitch on January 27, 2017 - 01:11:29 PM
    I applaud the A518 swap!!!

    I'm considering a similar swap, but convenient now is the readily avlbl S/S 4L60 swap.   Any pros/cons between these two trans?  I know cost for the S/S 4L60 ends up around roughly $5000 by the time its all done.

    Performance?  Computers? etc?

    Weight, both spinning internal and total weight.....  First gear ratio also sold me.
    « Last Edit: February 02, 2017 - 09:03:23 PM by brads70 »
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    Brad
    1970 Challenger 451stroker/4L60 auto OD
    Barrie,Ontario,Canada
    Proud to own one of the best cars ever made!!!!!

    My restoration thread 
    http://www.cuda-challenger.com/cc/index.php?topic=59072.0
     My handling upgrade post
    http://www.cuda-challenger.com/cc/index.php?topic=73985.0

    Offline PlumCrazyChris

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    Re: 727 to A518 swap – a novice guide
    « Reply #198 on: February 02, 2017 - 09:40:15 AM »
    I'm sure you can look up weights. The 518 is heavy, it's probably listedsomewhere in this thread, I haven't read the whole thing in a while. 

    There is no computer for the A500 and A518 prior to 96, they are hydraulically actuated.  I'm sure you're familiar with the durability of the 727, the 518 is a 727 with a bolt on OD.  They can be built to be bullet proof.   

    $5000!!!

    Wow, that's pricey.  But it is all electronic and you can set your shift points etc.  That is literally about 8x  what I've got in my swap.  And all the stock linkage works very well.  This should've/could've been a factory option.

    If you add a "professionally built" tranny you going to add a couple grand to my $300-400.  But if you start with a 95 518, and put a shift kit in it you'll be hard pressed to tear it up if you keep it cool.

    Take it for what it's worth. 
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    PlumCrazyChris
    Mopar Muscle Cars of Austin
    Round Rock Tx
    70 Challenger 5.7, A518, A/C
    70 Challenger 340 convertible (Gone to Sweden)
    68 Barracuda (sold it too)
    www.mopar.org

    Offline PlumCrazyChris

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    Re: 727 to A518 swap – a novice guide
    « Reply #199 on: February 02, 2017 - 12:24:41 PM »
    4L60E wt.
    Transmission Weight Dry (Approximate)
    70.5 kg (155.70 lb)

    Transmission Weight Wet (Approximate)
    80.5 kg (176.16 lb)


    From the SMR Transmission website. 

    STANDARD 727 -3 SPD TRANSMISSION                         34.39 inches
           Dry weight                                             127.65 lbs

    727 W/ STD.GEAR VENDORS OVERDRIVE                       48..85 inches
            Dry weight (with overdrive incl)            195.55 lbs
     
    A500/A518 OVERDRIVE TRANSMISSION                         37.2 inches
            Dry weight:  A500:                               147.45 lbs
                                A518:                               171.85 lbs
     
    STANDARD 904 -3 SPD TRANSMISSION                           30.58 inches
            Dry weight                                             103.42 lbs
    904  W/ STD.GEAR VENDORS OVERDRIVE                       45 inches
            Dry weight (with  overdrive incl.)          162.02 lbs
     
    NOTE:  Some Dry weights may vary slightly due to variations in number of clutch plates and size of planetary.
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    PlumCrazyChris
    Mopar Muscle Cars of Austin
    Round Rock Tx
    70 Challenger 5.7, A518, A/C
    70 Challenger 340 convertible (Gone to Sweden)
    68 Barracuda (sold it too)
    www.mopar.org

    Offline brads70

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    Re: 727 to A518 swap – a novice guide
    « Reply #200 on: February 02, 2017 - 09:07:29 PM »
    Those weights must be without the torque converters? Here is what I got when I weighed my stuff.
    New Keisler A-41 (4L65E) compleate tranny with torque convertor is 189lbs ( not full of oil)
    727 with TC oil drained out 170 lbs
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    Brad
    1970 Challenger 451stroker/4L60 auto OD
    Barrie,Ontario,Canada
    Proud to own one of the best cars ever made!!!!!

    My restoration thread 
    http://www.cuda-challenger.com/cc/index.php?topic=59072.0
     My handling upgrade post
    http://www.cuda-challenger.com/cc/index.php?topic=73985.0

    Offline Katfish

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    Re: 727 to A518 swap � a novice guide
    « Reply #201 on: February 02, 2017 - 09:18:41 PM »
    I posted all the measured weights in this thread......
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    Offline roadrunninMark

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    Re: 727 to A518 swap – a novice guide
    « Reply #202 on: February 09, 2017 - 09:31:50 AM »
    Any updates on the mounting bracket Chris?
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    Offline ChallengerHK

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    Re: 727 to A518 swap – a novice guide
    « Reply #203 on: February 09, 2017 - 11:00:34 AM »
     :popcorn:
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    Offline Barracuda Buzz (Jones)

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    Re: 727 to A518 swap – a novice guide
    « Reply #204 on: February 16, 2017 - 10:24:26 PM »
    Finally after 5 years of deciding WTF Barracuda Buzz is gonna do with the Trans it's finally gonna happen with the 518.
    I'll have the Episode on Youtube by the Spring/Summer ! Geeeeee
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    Offline PlumCrazyChris

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    Re: 727 to A518 swap – a novice guide
    « Reply #205 on: February 17, 2017 - 10:17:21 AM »
    Quote from: ChallengerHK on February 09, 2017 - 11:00:34 AM
    :popcorn:

    We'll apparently the CAD drawing I was given when I had the bracket cut out in Michigan, was not a usable format.  So I'm taking the sheet of steel with the cutout to the waterjet shop to have them trace it and create another file.  I can't even find any contact info from the place in Michigan, not sure it's still around. 
    I'm working  on it and will let you know as soon as I have something.  I should  at least have a price soon.

    Chris
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    PlumCrazyChris
    Mopar Muscle Cars of Austin
    Round Rock Tx
    70 Challenger 5.7, A518, A/C
    70 Challenger 340 convertible (Gone to Sweden)
    68 Barracuda (sold it too)
    www.mopar.org

    Offline roadrunninMark

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    Re: 727 to A518 swap – a novice guide
    « Reply #206 on: March 02, 2017 - 05:26:37 PM »
     :2thumbs:
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    Offline RCCDrew

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    Re: 727 to A518 swap – a novice guide
    « Reply #207 on: March 03, 2017 - 04:30:43 AM »
    Quote from: PlumCrazyChris on February 17, 2017 - 10:17:21 AM
    We'll apparently the CAD drawing I was given when I had the bracket cut out in Michigan, was not a usable format.  So I'm taking the sheet of steel with the cutout to the waterjet shop to have them trace it and create another file.  I can't even find any contact info from the place in Michigan, not sure it's still around. 
    I'm working  on it and will let you know as soon as I have something.  I should  at least have a price soon.

    Chris
    prospective buyer!
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    Offline msbaugh

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    Re: 727 to A518 swap – a novice guide
    « Reply #208 on: March 04, 2017 - 07:11:49 AM »
    I hate to do this... because I didn't read the whole thread... maybe it's been answered

    Can someone walk me through parts interchange between the 727 and a518?  I just put some big money into my 727  and completely rebuilt it myself (shafts, billet steel drum, new clutch packs, bolt in sprag, billet servos, new planetary gears, new valve body, etc, etc. etc.)

    I'm all of a sudden itching for the overdrive... will the 727 guts swap over?
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    Offline ChallengerHK

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    Re: 727 to A518 swap – a novice guide
    « Reply #209 on: March 04, 2017 - 09:54:11 AM »
    As far as I understand, the 518 is a 727 with the extra overdrive module between the main body and the tailshaft. I don't know if they made any little changes between the two thay might make some assemblies unusable,  though.
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    "She'll make point five past light speed. She may not look like much, but she's got it where it counts, and I've made a lot of special modifications myself."

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    Advice Thread - Taking Pictures Of Cars
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