super turbine 400

Discussion in 'Buick FAQ' started by shep, Aug 6, 2003.

  1. shep

    shep New Member

    I think I know the answer, but will a 66 ST400 behind a 401 bolt up to a 455? My Nailhead is stuck, (not sure how bad) and may go for more Mojo in a 455, for my 54 Chev S.D.:beer
     
    shep, Aug 6, 2003
    #1
  2. staged67gspwr

    staged67gspwr "The Black Widow"

    no the 66 s.t. 400 has a different bolt pattern than the 455,you`d have to get a 67-up 400.

    Thanks
     
    staged67gspwr, Aug 7, 2003
    #2
  3. sailbrd

    sailbrd Well-Known Member

    I could be wrong but I think it will work. In 66 Buick, Olds and Pontiac all used the same pattern or so I thought. I will check on this and get back.
     
    sailbrd, Aug 7, 2003
    #3
  4. staged67gspwr

    staged67gspwr "The Black Widow"

    `66 Buick`s still had the Nailhead engines which had the different bolt pattern than the `67 and later motors.
     
    staged67gspwr, Aug 7, 2003
    #4
  5. BlownNailhead

    BlownNailhead no refunds on bad answers

    Why change the trans too? Just fix the nailhead and keep your trans. A 455 is not that much stronger than a good nailhead.

    To answer your question directly, your 66 nailhead trans is a different bolt pattern than the 67-up style. It will not work with a 455.
     
    BlownNailhead, Aug 8, 2003
    #5

Share This Page