flywheel/clutch dilemma

Discussion in 'U-shift em' started by dirtrider546, Aug 28, 2012.

  1. dirtrider546

    dirtrider546 Trevor Gardner

    I have a 455 and a schiefer aluminum flywheel which bolts up fine to the crank... I also have a centerforce dual friction clutch PN:df148552 which should be for a 11'' flywheel. However the mounting bolts on the pressure plate are dont even come close to lining up with the holes on the flywheel. The plate is a larger diameter than the holes on the flywheel they measure approx 12 5/8''. Flywheel mount holes measure 10 5/8'' center to center.. Im wondering if its the flywheel thats off or is for a 10.4'' clutch. The wear pattern on the flywheel would appear to indacate 11'' however. confusing. any suggestions. Id rather go with a new flywheel than clutch but whatever. Dont know if anyone has some measurements of a ta flywheel or not..
     
  2. CJay

    CJay Supercar owner Staff Member

    I just happen to have a factory Buick 455 flywheel readily available and just measured it. measures exactly 12 5/8". So it appears that you have the wrong pressue plate.
     
  3. TheSilverBuick

    TheSilverBuick In the Middle of No Where

    Hmm, my flywheel has multiple tapped holes for what I guess would be to install different sized clutches. I just installed this 11" centerforce clutch on Saturday. You can see the bolt pattern is right at the perimeter of the flywheel.

    [​IMG]
     
  4. dirtrider546

    dirtrider546 Trevor Gardner

    Thats what the pressure plate measures, bolt hole 12 5/8 center to center. The flywheel measures 11 5/8. So i actually think my flywheel is wrong? Or are you measuring the outside diameter?:Do No:
     
  5. CJay

    CJay Supercar owner Staff Member

    I must of misread your original post. The bolt holes on my stock flywheel measure 12 5/8" from center to center. There are 6 of them and this is the measurement across the two opposite holes. Sorry for the confusion.
     
  6. dirtrider546

    dirtrider546 Trevor Gardner

    No prob thanks for the help!:cool::TU:

    ---------- Post added at 07:33 AM ---------- Previous post was at 07:33 AM ----------

    thanks man
     

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