SFI Approved Flexplates?

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  • Nightingale
    • Apr 2005
    • 259

    #1

    SFI Approved Flexplates?

    I've found sfi approved flexplates for the older 2.8L rwd engines that are external balanced, but these work on a gen3-4 engine if neutral balanced? Just hoping to find a flexplate plate that will hold up a little better and be a little safer than just spinning a stocker up to 7-8krpm and praying it won't fly apart and the bellhousing safety plate holds. Searched around for answers and no luck so far.
    98 camaro swapping in lz9 th400 setup
    LZ9 specs: (Subject to Change work in progress)
    4.0L(after bore 3.917 and stroke 3.3485),carrillo sbc rods(narrowed),wiseco custom forged pistons 8.5:1 CR, TCE Double Roller timing chain, gen 3 cam, P&P heads, headers 1 3/4 primaries into 3-1 collector, and going to run ms2.
  • bszopi
    Site Coder
    • Apr 2000
    • 9187

    #2
    Have you emailed anyone like TCI and see what they say, or have available?
    -Brad-
    89 Mustang : Future 60V6 Power

    Follow the build -> http://www.3x00swap.com/index.php?page=mustang-blog

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    • Nightingale
      • Apr 2005
      • 259

      #3
      Actually scratch that I just found an internal balanced sfi approved flexplate for the rwd application 2.8L. Little leary about it, but for the cost its worth a shot.

      http://cgi.ebay.com/ebaymotors/GM-CH...081510009r1398
      98 camaro swapping in lz9 th400 setup
      LZ9 specs: (Subject to Change work in progress)
      4.0L(after bore 3.917 and stroke 3.3485),carrillo sbc rods(narrowed),wiseco custom forged pistons 8.5:1 CR, TCE Double Roller timing chain, gen 3 cam, P&P heads, headers 1 3/4 primaries into 3-1 collector, and going to run ms2.

      Comment

      • blackbombshell95
        Kaiō-ken X 10
        • Jun 2004
        • 1386

        #4
        I think the sfi meziere flexplate for the gm 3.8's MIGHT fit. The meziere is a 245mm converter and I think the 3100/3400s are 245mm. Not sure for the 2.8.

        I won't be spinning my 3400 engine higher than 6400 with a stock flexplate.
        Corey's 95 GP - Engine/Trans installed
        02 GTP - 90* > Failboat
        www.blackbombshell95.com

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