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Thread: Eaton Swap Brackets

  1. #1
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    Eaton Swap Brackets

    I have an 03 marauder and a complete 03 cobra engine minus the bracketry. I haven't been able to find the swap brackets as it seems those that were making them do not anymore. Does anyone have the dimensions for them? I have a full machine shop and a cnc machine. I could make them if need be but Id rather not tear the car down and have it immobilized to design the brackets if there is already a working prototype available. No need in redesigning the wheel. If anyone can share the details or direct me to someone i can order them from it would be appreciated.

  2. #2
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    member lji372
    2004 SB Ported Trilogy 48
    Has supporting mods and stuff
    Thanks to Marty O for his help in updating this car.

    R.I.P.
    Rex "SC Cheesehead"

  3. #3
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    Feb 2017
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    Thanks man I got the brackets and I believe everything else needed for the swap as well. Only thing Im not sure of is the crank pulley. Can I use the original cobra lower pulley or do I have to get the marauder swap crank pulley such as these

    https://www.ebay.com/itm/2003-2004-4...7276%7Ciid%3A1

  4. #4
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    Those swap pulleys in the ebay listing are to add boost depending on size of lower pulley and will spin the blower faster, but are listed in the eaton swap thread. I'm not sure if the cobra stock lower fits, but you have a cobra motor says first post so what are your goals for hp?
    Last edited by RubberCtyRauder; 11-09-2018 at 08:35 AM.
    2004 SB Ported Trilogy 48
    Has supporting mods and stuff
    Thanks to Marty O for his help in updating this car.

    R.I.P.
    Rex "SC Cheesehead"

  5. #5
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    New Orleans, LA
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    I have none really. The car is just a driver so hp is no concern. I just want to be sure I can use what I have so the car is not down waiting on parts. On the cobra I had a 6 lb lower and a 2.6"? upper IIRC. I was hoping I could reuse that if possible.

    I intend on keeping the original cobra balancer on it of that determines the pulley or not Im not sure.

    any details would be appreciated.

  6. #6
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    Eaton Swap Brackets

    Quote Originally Posted by decipha View Post
    I have none really. The car is just a driver so hp is no concern. I just want to be sure I can use what I have so the car is not down waiting on parts. On the cobra I had a 6 lb lower and a 2.6"? upper IIRC. I was hoping I could reuse that if possible.

    I intend on keeping the original cobra balancer on it of that determines the pulley or not Im not sure.

    any details would be appreciated.


    Spacing wise the same however if I recall, a +6 interferes with something. A few here have had to trim something on just the +4 but my +4 as well as many others here fit fine.

    My Trilogy with a 2.8 and +4 was damn near in boost at all times. It got so hot it was cooking the paint off the blower.

    Sent from my iPhone using Tapatalk Pro
    SOLD 12/31/2021

    Cobra short block / ProCharger F1-A / Cog drive upgrade / Manley valves / Brian Tooley Racing valve springs / 80# inj. / -8 fuel line / -6 return / Aeromotive 340 pumps and regulator / 2012 GT500 TR6060 six speed / twin disc clutch / Driveshaft Shop GT500 upgraded CV joint shaft / BA5000 blow thru MAF/ 4.10's / Ford Racing 31 spline set up and Girdle / Metco D.S. safety loop / Stainless Works headers, cats, and everything else out back / ClassGlass hood / Bob's hood strut mod / Hurst line lock / Metco control arms / Addco front and rear sway bars / Monroe severe duty shocks all around / Race concepts rotors / Badgeless grille / 35% tint / FBM's interior LED kit and ambient lighting kit / Pioneer FB700 deck / kenwood speaker 4 Ch. / Rockford Fosgate 10" sub and amp / Kicker 6 X 8's all around / back up cam / bluetooth / Pioneer Xm / 704 RWHP 603 RWTQ tuned by Mo's Speedshop.

  7. #7
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    I know there are many previous posts that talk about pully combinations and what kind of boost they produce. I think 2lb lower and 3.0 upper =12lbs
    2004 marauder black purchased new. Sold 9/16 at 297,000 miles. Still ran strong didn't burn a drop of oil.
    2003 marauder black 28,000 miles all stock. Garage Queen.
    2004 marauder red daily driver.

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