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Results 1 to 7 of 7
  1. #1
    Join Date
    Jun 2010
    Location
    Chestermere, Alberta Canada
    Posts
    45

    Flex plate question on 4R swap

    I pulled my low milage 2002 Mustang 4R70W this weekend in the freezing cold.

    So doing some research and found that in order to run the 4R on my 351w I need to cut some tabs on the bell housing. No biggy. Now the trans to flex plate is different story. I know I need a 28oz flex plate but I need a 164t not a 157t flex plate. Well the 1996 F-150 that donated the engine has a 28oz 164t and was used with the factory E4OD. Will this flex plate work?

  2. #2
    Join Date
    Apr 2006
    Location
    KCMO
    Posts
    9,122
    THe MODular case of the 2002 mustang 4.6l will not fit the 351.

    You need a 164t 28oz flex from a C4
    No, the C6/E4oD flex will not work.

  3. #3
    Join Date
    Jun 2010
    Location
    Chestermere, Alberta Canada
    Posts
    45
    The 4R is from a V6 3.8L.

    Why will the E4OD flex plate not work? just curious

  4. #4
    Join Date
    Apr 2006
    Location
    KCMO
    Posts
    9,122
    It has slightly more thrust toward the transmission, for a deeper bellhousing you could say, of the C6 or E4.
    Many have tried, many have died.....once you bolt up the AOD to a C6 flex, it pushes the converter to tight to the trans and chews the pump up the instant you start the engine.

    It is hard to tell the difference, but it some down to the simple method of making sure the converter is not bound up to the flex after the trans is bolted
    Here is a link I found just now
    http://www.hotrod.com/articles/pit-s...lure-302-ford/

  5. #5
    Join Date
    Jun 2010
    Location
    Chestermere, Alberta Canada
    Posts
    45
    That is what I like about you Dan. You have the knowledge and the stuff to back it up like this article.

    So then the Pioneer FRA-205 flex plate should work for my application?

    Then the starter I use should be what? The truck 351w? 2002 V6 Mustang?

    Thanks again Dan. I may have more questions as I go along with the swap.

  6. #6
    Join Date
    Jun 2010
    Location
    Chestermere, Alberta Canada
    Posts
    45
    I found a pioneer flex plate brand new locally but I want to make sure it is the right one before I buy it.

  7. #7
    Join Date
    Apr 2006
    Location
    KCMO
    Posts
    9,122
    If it is for a C4 car, and has the imbalance you need, yes.
    164t, C4, 28oz for stock 351 crank

    You will use either starter, they will function identical other than wiring I assume.

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