'Da Nailhead

Pop Kennedy and TV-Tommy could make 'em run. You can too! Get the lowdown on the most underrated Buick motor here...who needs wedge heads?

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  1. wagonboss

    Torque Tube to Open Driveline Conversion

    wagonboss, Jul 1, 2004
    Replies:
    1
    Views:
    5,231
    Special57
    Jul 1, 2004
  2. Buick Kid

    401 Fuel Filter Problems

    Buick Kid, Sep 2, 2008 ... 2
    Replies:
    25
    Views:
    5,211
    Buick Kid
    Nov 9, 2008
  3. BuickStreet

    3 Movies - 6,000 RPM Nailhead, tach, q-jet and exhaust.

    BuickStreet, Mar 2, 2003 ... 2
    Replies:
    29
    Views:
    5,207
    Dan K
    Mar 4, 2003
  4. cool55

    401 in 32 roadster chassis

    cool55, Jan 12, 2008 ... 2
    Replies:
    25
    Views:
    5,198
    nailheadnut
    Feb 24, 2008
  5. dirk401425

    401 425 water pump

    dirk401425, Feb 16, 2013 ... 2
    Replies:
    23
    Views:
    5,150
    doc
    Feb 19, 2013
  6. 79xs1100

    425 AC Brackets

    79xs1100, Sep 23, 2007 ... 2 3
    Replies:
    42
    Views:
    5,134
    doc
    Mar 26, 2008
  7. TurboV6

    HELP Needed, 425 engine vibration

    TurboV6, Oct 24, 2011 ... 2
    Replies:
    30
    Views:
    5,114
    TurboV6
    Feb 1, 2012
  8. 66larkgs

    65-66 gs engine mount mod

    66larkgs, Jul 22, 2012 ... 2
    Replies:
    31
    Views:
    5,113
    66larkgs
    Aug 8, 2012
  9. Brian

    The '65 GS is painted now

    Brian, Aug 1, 2005 ... 3 4 5
    Replies:
    81
    Views:
    5,109
    paul c
    Apr 3, 2006
  10. nineteenfifty5

    What OIL for the nailhead

    nineteenfifty5, Jun 17, 2011
    Replies:
    13
    Views:
    5,102
    hudrod
    Jun 29, 2011
  11. staged67gspwr

    What AC Delco plugs do i need for my `65 GS

    staged67gspwr, Aug 26, 2003
    Replies:
    12
    Views:
    5,090
    riv65
    Sep 16, 2003
  12. Kqqlcat

    My Nailhead All Dressed Up

    Kqqlcat, Nov 5, 2009 ... 2
    Replies:
    26
    Views:
    5,068
    Wicked50
    Nov 29, 2009
  13. schuess100

    Intake manifold casting numbers?

    schuess100, Jul 15, 2004
    Replies:
    9
    Views:
    5,068
    wildcat2
    Jul 4, 2005
  14. BuickSpecial41

    Need to get at least 250 Hp out of a 322

    BuickSpecial41, Mar 3, 2016 ... 2
    Replies:
    34
    Views:
    5,064
    telriv
    Dec 31, 2016
  15. Sabotage_666

    Supercharged reverse flow nailhead

    Sabotage_666, Oct 17, 2012
    Replies:
    7
    Views:
    5,050
    Sabotage_666
    Oct 21, 2012
  16. 66electrafied

    401 Tune Up; this car defeats me!

    66electrafied, May 8, 2016 ... 2
    Replies:
    36
    Views:
    5,044
    6WildCat5
    May 18, 2016
  17. CameoInvicta

    Help me find my Dynaflow leak, please!

    CameoInvicta, May 10, 2009
    Replies:
    18
    Views:
    5,039
    CameoInvicta
    May 22, 2009
  18. dennis h. pater

    hardened valve seats not need for nailheads

    dennis h. pater, Apr 3, 2009
    Replies:
    18
    Views:
    5,026
    66electrafied
    May 25, 2009
  19. Herby

    1st Cylinder and timing point 401 nailhead 1960

    Herby, Aug 23, 2012 ... 2
    Replies:
    22
    Views:
    5,010
    wilber
    Sep 4, 2012
  20. BuickStreet

    Who is the best Nailhead head porter

    BuickStreet, May 21, 2003 ... 2
    Replies:
    35
    Views:
    5,007
    Babeola
    May 30, 2003
  21. gemslessig

    Which spark plug brand would you suggest?

    gemslessig, Mar 15, 2007 ... 2
    Replies:
    21
    Views:
    5,005
    JESUPERCAT
    Jun 1, 2013
  22. 66gsconv

    Whats it take to get 12.5 or better with a nailhead

    66gsconv, Jan 24, 2013 ... 3 4 5
    Replies:
    81
    Views:
    5,000
    gsgtx
    Sep 24, 2013
  23. rcb

    WTB Nailhead Valve Covers

    rcb, Jul 19, 2009
    Replies:
    15
    Views:
    4,995
    65_Riviera
    Aug 22, 2009
  24. TeutonicOak

    322 Nailhead - modern headers

    TeutonicOak, May 1, 2003
    Replies:
    5
    Views:
    4,982
    DualQuad55
    May 30, 2003
  25. Spicolli00

    Nailhead ID

    Spicolli00, Jan 7, 2010
    Replies:
    19
    Views:
    4,978
    ahhh65riv
    Jan 10, 2010
  26. WhiteWallPaul

    401 question-valve knock?aluminum in pan- ideas?

    WhiteWallPaul, Nov 26, 2009 ... 2
    Replies:
    30
    Views:
    4,914
    WhiteWallPaul
    Jan 6, 2010
  27. gsgtx

    longer rods 425

    gsgtx, May 24, 2010 ... 2
    Replies:
    24
    Views:
    4,914
    doc
    Nov 3, 2010
  28. 66GS401

    custom air cleaners on nailhead/66skylark

    66GS401, Sep 25, 2009
    Replies:
    14
    Views:
    4,912
    75Riv
    Sep 28, 2009
  29. gsgtx

    stroke 425

    gsgtx, Nov 26, 2009 ... 2
    Replies:
    27
    Views:
    4,911
    kitabel
    Dec 10, 2009
  30. 36racin

    Nailhead Block ID

    36racin, May 19, 2013 ... 2
    Replies:
    31
    Views:
    4,874
    Roberta
    Jul 2, 2013
  31. garys64wildcat

    Backfire on 425 Nailhead

    garys64wildcat, May 30, 2009 ... 2
    Replies:
    36
    Views:
    4,862
    garys64wildcat
    Jun 15, 2009
  32. Birdoprey

    Nailhead with FiTech EFI up and running

    Birdoprey, Jan 21, 2018 ... 2
    Replies:
    36
    Views:
    4,812
    Birdoprey
    Oct 8, 2018
  33. 65skylark300

    Anyone know max nailhead power #'s?

    65skylark300, Feb 21, 2014 ... 2
    Replies:
    21
    Views:
    4,802
    66gsconv
    Feb 25, 2014
  34. 425 2X4 Nailhd

    Buick Nailhead Aluminum Prototype Heads

    425 2X4 Nailhd, Mar 31, 2009
    Replies:
    7
    Views:
    4,778
    425 2X4 Nailhd
    Apr 1, 2010
  35. gsgtx

    deck heights

    gsgtx, Dec 26, 2008 ... 2
    Replies:
    39
    Views:
    4,764
    Babeola
    Jan 15, 2009
  36. fedman

    Rebuilt 322" smoking

    fedman, Jul 6, 2010 ... 2
    Replies:
    26
    Views:
    4,759
    bhambulldog
    Jul 9, 2010
  37. 66larkgs

    running a turbo on my nailhead

    66larkgs, Sep 13, 2009 ... 2
    Replies:
    24
    Views:
    4,759
    6671
    Jan 1, 2010
  38. BuickStreet

    Brand New 425 found!

    BuickStreet, Aug 13, 2009 ... 2 3
    Replies:
    45
    Views:
    4,756
    BuickStreet
    Aug 26, 2009
  39. garry baker

    crankcase ventilator pipe 401

    garry baker, Jun 23, 2012 ... 2
    Replies:
    29
    Views:
    4,748
    Page2171
    Jul 8, 2012
  40. 66larkgs

    nailhead making some noise(cracked flywheel)

    66larkgs, May 2, 2011 ... 2
    Replies:
    33
    Views:
    4,716
    66larkgs
    Jun 12, 2011
  41. Dwane Williams

    Tommy IVO drag Car

    Dwane Williams, Mar 5, 2008
    Replies:
    18
    Views:
    4,682
    sean Buick 76
    Jul 31, 2010
  42. v8nailhead

    Number 1 Cylinder - left or right?

    v8nailhead, Mar 23, 2003
    Replies:
    10
    Views:
    4,672
    palbuick
    Apr 17, 2003
  43. EIRE V8

    Is this too much slack?

    EIRE V8, Sep 7, 2014 ... 2
    Replies:
    30
    Views:
    4,668
    UntamedKitty
    Sep 18, 2014
  44. tysongross

    Ebay really cool headers for nailhead

    tysongross, Jan 17, 2011 ... 2
    Replies:
    22
    Views:
    4,663
    nekkidhillbilly
    Apr 24, 2011
  45. SpecialWagon65

    Nailhead Dyno Results Anyone?

    SpecialWagon65, May 29, 2003 ... 2
    Replies:
    22
    Views:
    4,652
    up rivr
    Jun 28, 2003
  46. Dznuggets

    57 Barn find has bent push rods and stuck valves

    Dznuggets, Sep 20, 2016 ... 2 3
    Replies:
    42
    Views:
    4,634
    Smartin
    Apr 2, 2017
  47. sd-slider

    66 401 Nailhead Re-build/Re-fresh Tips

    sd-slider, May 16, 2009
    Replies:
    7
    Views:
    4,625
    sd-slider
    May 18, 2009
  48. Aussie V8

    Holley on a Nailhead ??

    Aussie V8, Jul 25, 2008 ... 2 3
    Replies:
    40
    Views:
    4,612
    John Henry
    Aug 31, 2009
  49. DaFraz

    Strokin a NH

    DaFraz, Oct 4, 2003 ... 2
    Replies:
    25
    Views:
    4,608
    66gsconv
    Jun 2, 2013
  50. micmo

    my 64 riviera has......

    micmo, Sep 14, 2007
    Replies:
    3
    Views:
    4,599
    CTX-SLPR
    Sep 15, 2007
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