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350 tranny

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  • #1

    350 tranny

    got the 350 crate engine from gm and want to know if it will bolt into the trans from a 5.0 tbi stock auto tranny and run close to a stock feel. should the tranny be regeared?

    specs on car
    base firebird '91
    4 spd auto stock
    305 tbi stock
    Tags: None
  • #2
    What year are you trying to put this in I'm guessing a third gen if its a 305 tbi and if its a gm crate engine I think it might fit in with the stock tranny but let us have somemore information, im sure other people will jump in now though.
    -Dan

    1986 350 TPI Trans Am, 700R-4, Flowmaster exhaust, CAI, 180* t/stat, low temp fan switch, SFC's....Sold.

    Project Status: LT1 disassembled, researching costs, searching for project car.

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    • #3
      All gen 1 small block engines bolt to all gen 1 small block trans. A 305 and 350 are the same outside dimentions so they will swap all trans. for that matter 283,302,305,327,350,400 all share the same mounts. all gen 2 SB engines swap also.

      Eric W.

      89 Firebird Formula WS6
      Accel/Lingenfelter Super Ram
      6.2L/382.97 ci
      Custom PROM Dyno tuned
      WCT-5 speed
      BW 9-bolt Posi 3.45
      Boss MS 18" Rims
      Headman Headers 1 5/8 Ceramic Coated
      Custom Dual exhaust
      1LE upgrade
      Custom Temperature / Navigation Rear View Mirror
      In a constant state of upgrade!

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      • #4
        If its a 3rd gen.. You have a 700R4 trans. It will be fine.
        No F-Body right now

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        • #5
          Yes, the bellhousing bolt pattern and the crank to flexplate bolt pattern will be identical. 100% compatible swap.

          Re-gear the trans? Are you talking about changing the individual ratios?

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