Buick Nailhead THM 400

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  • #7259
    rustynail
    Member

    Can the Buick Nailhead TH400 be used behind the Jetfire 215 V8?

    #7334
    bcroe@juno.com
    Participant

    Its a pretty difficult conversion I once contemplated. The engine has a
    heavy flywheel since the trans has no torque converter at the engine.
    Perhaps a Buick crank setup can be used, since it used that 2 speed
    with a torque converter. I think I still have that flex plate, its available.
    Then there is still the matter of an adapter plate to mate them. The
    TH400 came with a lot of different bell housings, but I prefer a BOP
    switch pitch version. Bruce Roe

    #7335
    rustynail
    Member

    Chose to go with my Chevy 454v8 TH400 and D&D Fabrications adapter. The Nailhead TH400 has the starter on the wrong side for the 215 v8 and a bolt pattern that fits a Nailhead Buick and some Jeep applications only. I will use a TCI 8-1/2″ converter from my race closet.

    #7336
    bcroe@juno.com
    Participant

    Send us pictures when you get it worked out. Bruce Roe

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