'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. CameoInvicta

    Bad miss - need some help!

    CameoInvicta, May 24, 2018 ... 2
    Replies:
    25
    Views:
    1,787
    Superstingray77
    Nov 13, 2019
  2. Bigpig455

    66GSConv passed away today

    Bigpig455, May 28, 2019 ... 2
    Replies:
    25
    Views:
    2,182
    telriv
    Oct 5, 2019
  3. 18CEOD

    Is this a true LX 425 ?

    18CEOD, Aug 5, 2018 ... 2
    Replies:
    25
    Views:
    2,008
    gsgtx
    Sep 27, 2018
  4. CameoInvicta

    Heading to the strip with NITROUS!

    CameoInvicta, Aug 16, 2015 ... 2
    Replies:
    25
    Views:
    3,337
    gs66
    Sep 3, 2018
  5. supersteve

    cracked block: to weld or not to weld?

    supersteve, Sep 4, 2016 ... 2
    Replies:
    25
    Views:
    2,650
    supersteve
    Sep 25, 2016
  6. Aussie V8

    Looks like I got lucky

    Aussie V8, Jan 21, 2016 ... 2
    Replies:
    25
    Views:
    2,926
    Aussie V8
    Jan 26, 2016
  7. Frankscat

    German newbie doing a 401 rebuilt

    Frankscat, Jul 21, 2015 ... 2
    Replies:
    25
    Views:
    2,838
    Frankscat
    Aug 14, 2015
  8. Frankscat

    Help a naildhead owner in overseas

    Frankscat, Jul 13, 2015 ... 2
    Replies:
    25
    Views:
    2,252
    Frankscat
    Jul 23, 2015
  9. m900rider

    Newly Designed Nail-Head Buick T-Shirts

    m900rider, Jan 24, 2015 ... 2
    Replies:
    25
    Views:
    3,223
    GS Jim
    Jun 19, 2015
  10. Bigpig455

    Remind me to stop calling Tom

    Bigpig455, Mar 19, 2014 ... 2
    Replies:
    25
    Views:
    1,818
    66gsconv
    Mar 30, 2014
  11. 65wildcater

    425 casting numbers

    65wildcater, Oct 11, 2013 ... 2
    Replies:
    25
    Views:
    6,372
    56buickboy
    Dec 10, 2013
  12. DaFraz

    Strokin a NH

    DaFraz, Oct 4, 2003 ... 2
    Replies:
    25
    Views:
    4,617
    66gsconv
    Jun 2, 2013
  13. BPDRacing

    TA Performance Headers?

    BPDRacing, Dec 12, 2012 ... 2
    Replies:
    25
    Views:
    3,374
    doc
    Dec 28, 2012
  14. Kev

    What tranny

    Kev, Mar 26, 2011 ... 2
    Replies:
    25
    Views:
    2,502
    turbobill
    Apr 7, 2011
  15. tysongross

    Starting old engines...

    tysongross, Nov 9, 2010 ... 2
    Replies:
    25
    Views:
    6,812
    bhambulldog
    Nov 14, 2010
  16. Herby

    nailhead 401 muffler

    Herby, Jul 24, 2010 ... 2
    Replies:
    25
    Views:
    4,321
    nekkidhillbilly
    Jul 29, 2010
  17. JZRIV

    Consensus on Using Exhaust Manifold Gaskets or Not

    JZRIV, Mar 22, 2010 ... 2
    Replies:
    25
    Views:
    3,216
    doc
    Jun 1, 2010
  18. 66special

    lead additive & oil question

    66special, Apr 13, 2010 ... 2
    Replies:
    25
    Views:
    2,872
    DaWildcat
    May 2, 2010
  19. doc

    problem I aint never had before...

    doc, Jun 13, 2009 ... 2
    Replies:
    25
    Views:
    1,925
    doc
    Aug 21, 2009
  20. funkyriv

    Modern Camshaft Design

    funkyriv, Jul 3, 2009 ... 2
    Replies:
    25
    Views:
    2,688
    Babeola
    Jul 17, 2009
  21. DeVille

    That age-old oil question again...

    DeVille, Nov 24, 2008 ... 2
    Replies:
    25
    Views:
    2,613
    ibmoses
    Jan 6, 2009
  22. Buick Kid

    401 Fuel Filter Problems

    Buick Kid, Sep 2, 2008 ... 2
    Replies:
    25
    Views:
    5,216
    Buick Kid
    Nov 9, 2008
  23. rb25

    425 injected

    rb25, Oct 7, 2008 ... 2
    Replies:
    25
    Views:
    4,587
    nekkidhillbilly
    Oct 8, 2008
  24. 66larkgs

    turbo nailhead almost done!! need fuel pump

    66larkgs, Sep 14, 2008 ... 2
    Replies:
    25
    Views:
    4,331
    66larkgs
    Oct 5, 2008
  25. leadsled01

    help me diagnose my nail

    leadsled01, May 13, 2008 ... 2
    Replies:
    25
    Views:
    2,117
    leadsled01
    May 30, 2008
  26. cool55

    401 in 32 roadster chassis

    cool55, Jan 12, 2008 ... 2
    Replies:
    25
    Views:
    5,203
    nailheadnut
    Feb 24, 2008
  27. Gulfgears

    Beautiful Nail Head

    Gulfgears, Oct 18, 2007 ... 2
    Replies:
    25
    Views:
    2,875
    Mentalkase
    Oct 31, 2007
  28. nimrod

    TA Nailhead 425 "Shorty" Headers

    nimrod, Aug 11, 2007 ... 2
    Replies:
    25
    Views:
    8,636
    65_Riviera
    Sep 9, 2007
  29. 71GSX455-4SPD

    2X4 Carb Value Question

    71GSX455-4SPD, Nov 9, 2006 ... 2
    Replies:
    25
    Views:
    1,338
    nailheadpowered
    Nov 13, 2006
  30. buickbonehead

    The 425 is in!

    buickbonehead, Nov 21, 2005 ... 2
    Replies:
    25
    Views:
    1,944
    Gransport65
    Dec 2, 2005
  31. sixt6HellRaiser

    Turbo Nailhead...hmmmmmmm

    sixt6HellRaiser, Jun 11, 2005 ... 2
    Replies:
    25
    Views:
    1,905
    Nail Head
    Jul 16, 2005
  32. calvin dubose

    425 nailhead where to look????

    calvin dubose, Nov 19, 2004 ... 2
    Replies:
    25
    Views:
    1,352
    tmcclu
    Nov 23, 2004
  33. r0ckstarr79

    Riviera test drive after carb rebuild

    r0ckstarr79, Feb 21, 2004 ... 2
    Replies:
    25
    Views:
    1,837
    r0ckstarr79
    Feb 24, 2004
  34. efingstein

    Let's talk about fuel injection...

    efingstein, Aug 18, 2003 ... 2
    Replies:
    25
    Views:
    3,057
    CTX-SLPR
    Oct 25, 2003
  35. staged67gspwr

    I think,i`m in oil pump trouble

    staged67gspwr, Jan 7, 2003 ... 2
    Replies:
    25
    Views:
    5,667
    wildcat2
    Jan 13, 2003
  36. Fragzem

    Idle RPM misfire

    Fragzem, Aug 8, 2020 ... 2
    Replies:
    24
    Views:
    1,919
    Fragzem
    Mar 25, 2021
  37. v8regalowner

    what trans should i use behind the 66 401.

    v8regalowner, Apr 14, 2011 ... 2
    Replies:
    24
    Views:
    4,299
    Dragdoc
    Apr 19, 2020
  38. WPearson

    Carburetor interchangabilty for dual quad set up

    WPearson, Jan 30, 2016 ... 2
    Replies:
    24
    Views:
    4,257
    nailheadnut
    Mar 12, 2016
  39. BuickMike

    Blocking rear oil passage in head?

    BuickMike, Nov 16, 2015 ... 2
    Replies:
    24
    Views:
    2,509
    322bnh
    Nov 22, 2015
  40. 4toe

    The EB24 2x4 is back!

    4toe, Feb 23, 2015 ... 2
    Replies:
    24
    Views:
    4,053
    snake
    Feb 27, 2015
  41. funkyriv

    425 Challenges

    funkyriv, Jan 16, 2015 ... 2
    Replies:
    24
    Views:
    4,449
    doc
    Jan 27, 2015
  42. gsgtx

    shifting gears with low and high stall

    gsgtx, Apr 22, 2014 ... 2
    Replies:
    24
    Views:
    3,997
    gsgtx
    Apr 25, 2014
  43. GS Spoken Here

    Cold air intake for AFB in 65 GS

    GS Spoken Here, Aug 29, 2013 ... 2
    Replies:
    24
    Views:
    2,338
    wkillgs
    Sep 8, 2013
  44. snake

    Ported 425 heads flow #s

    snake, Apr 23, 2013 ... 2
    Replies:
    24
    Views:
    2,623
    66gsconv
    Aug 27, 2013
  45. nitrocrew

    Compression confusion

    nitrocrew, Nov 25, 2012 ... 2
    Replies:
    24
    Views:
    1,794
    87GN@Tahoe
    Nov 26, 2012
  46. doc

    My 64 riv.....

    doc, Sep 23, 2012 ... 2
    Replies:
    24
    Views:
    2,918
    D-Con
    Oct 11, 2012
  47. Rob J

    Need as much info as I can get on rebuilding the Nailhead 401.

    Rob J, Feb 27, 2012 ... 2
    Replies:
    24
    Views:
    1,690
    doc
    Mar 2, 2012
  48. lukiebear69

    425 emergency! water in oil :"(

    lukiebear69, Feb 21, 2012 ... 2
    Replies:
    24
    Views:
    2,024
    lukiebear69
    Feb 24, 2012
  49. Bigpig455

    Quadrajet Intake Dash Pot Bracket

    Bigpig455, Dec 6, 2011 ... 2
    Replies:
    24
    Views:
    4,127
    Bigpig455
    Dec 13, 2011
  50. hudrod

    Its alive with home made Hilborn EFI conversion

    hudrod, Jun 29, 2011 ... 2
    Replies:
    24
    Views:
    7,857
    doc
    Dec 10, 2011
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