Transmission Bell Housing Thread Pitch and Diameter

  • 1SIKZ31
    1SIKZ31
    Senior Member
    • 1236

    Transmission Bell Housing Thread Pitch and Diameter

    Googled it.
    Searched it.
    Can't seem to find that page that shows all the threadpitch and diameters of the bolts on the Z31.

    Need to know what the thread pitch and diameter to the bellhousing is guys, to bolt my engine up to the engine stand.

    Is it:
    M10x1.25
    or
    M10x1.50
    or
    ???


    Someone help me please, thanks!

    P.S. Don't fucking tell me to remove my bellhousing bolt and just take it to home-depot or something, as the car is NO where near me and I don't want to make the drive, to remove a bolt.
    Thanks!
    1SIKZ31 -86 SlickTop- R.I.P. 03/01/10 … Parted out :-(
    … New Project: LS1 Miata. Complete. 510whp. 2500lbs.
    1 Month Away from Rear Mount 76 --> 650-700whp.
  • vagabond
    vagabond
    Senior Member
    • 3455

    #2
    I'm a douche. I got bolts from NAPA about a week ago for my stand and forgot to write the pitch down, for this very reason. This is the second time too.

    :twisted: Just take the bolt with you. They will match it up at the parts store, or they usually have that display thing with the different threaded holes. :twisted:

    If you can wait I can tell you this evening. I'm heading to the store again.
  • 88sinZ
    88sinZ
    Senior Member
    • 2019

    #3
    12mmx1.5mm

    naw sho meh yer titz
  • vagabond
    vagabond
    Senior Member
    • 3455

    #4
    88sinZ wrote: 12mmx1.5mm

    naw sho meh yer titz
    Ah good deal. Thank you sir!
  • aceman
    aceman
    Senior Member
    • 1566

    #5
    old head bolts>buying new bolts.
    Nearly all men can stand adversity, but if you want to test a mans character make him a moderator.
  • 1SIKZ31
    1SIKZ31
    Senior Member
    • 1236

    #6
    aceman wrote: old head bolts>buying new bolts.
    HA!!!
    Old head bolts!
    I'm scrapping the bolts anyway!

    Will use these, thanks Ace! :twisted:
    1SIKZ31 -86 SlickTop- R.I.P. 03/01/10 … Parted out :-(
    … New Project: LS1 Miata. Complete. 510whp. 2500lbs.
    1 Month Away from Rear Mount 76 --> 650-700whp.