'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

    Starting a company; what parts for Nailhead era Buicks do you want to see?

    CameoInvicta, Jul 1, 2009 ... 2 3
    Replies:
    58
    Views:
    6,152
    ahhh65riv
    Sep 14, 2009
  2. JohnK

    425 Nailhead Spark Plugs

    JohnK, Apr 30, 2002
    Replies:
    13
    Views:
    6,133
    Schurkey
    Jul 19, 2009
  3. d7cook

    65 425 Nailhead questions and needs!

    d7cook, May 30, 2007 ... 2 3
    Replies:
    42
    Views:
    6,090
    d7cook
    Mar 12, 2008
  4. steinerj56

    401 nail head whine noise

    steinerj56, Oct 1, 2014 ... 2
    Replies:
    37
    Views:
    6,051
    Buick 64 Wildcat
    Jul 11, 2020
  5. 66larkgs

    pics of turbo nailhead

    66larkgs, Mar 2, 2010 ... 2
    Replies:
    39
    Views:
    6,046
    66larkgs
    Jun 8, 2010
  6. BlackPumpkin

    best oil for 401 Nailhead

    BlackPumpkin, Nov 4, 2007
    Replies:
    14
    Views:
    6,026
    64BuickCat
    Nov 17, 2007
  7. flh73

    401 Build "Stock"

    flh73, Mar 30, 2015 ... 2 3
    Replies:
    49
    Views:
    5,988
    gsgtx
    Apr 6, 2015
  8. 401Riviera

    Whats a better carb for a 401 bored .030 with 9.8:1 Compression?

    401Riviera, Oct 30, 2012 ... 2 3 4
    Replies:
    66
    Views:
    5,967
    snake
    Mar 1, 2013
  9. BillyJack111

    Recommended oil & plugs for '66 401 nailhead???

    BillyJack111, Aug 26, 2010
    Replies:
    12
    Views:
    5,951
    BillyJack111
    Sep 17, 2010
  10. 1966buickgs

    401 rebuild with tapping noise...

    1966buickgs, Aug 22, 2016 ... 2 3
    Replies:
    51
    Views:
    5,924
    GSBuick65
    Oct 16, 2016
  11. r0ckstarr

    My car has a backfiring disorder..

    r0ckstarr, Mar 13, 2009 ... 2 3
    Replies:
    46
    Views:
    5,896
    r0ckstarr
    Apr 8, 2009
  12. jimtash

    What does a puffing sound out the tail pipe mean?

    jimtash, Aug 22, 2008
    Replies:
    11
    Views:
    5,893
    doc
    Aug 24, 2008
  13. TXGS

    Nailhead to 700r4

    TXGS, Jan 29, 2010 ... 2
    Replies:
    22
    Views:
    5,889
    CameoInvicta
    Feb 7, 2010
  14. thood1954

    66 GS w/401 Nailhead What carb is supposed to be on it?

    thood1954, Nov 9, 2016 ... 2
    Replies:
    27
    Views:
    5,861
    Bigpig455
    Dec 2, 2016
  15. flh73

    Valves Replaced Head rebuilding

    flh73, Oct 15, 2014 ... 2
    Replies:
    34
    Views:
    5,818
    doc
    Nov 1, 2014
  16. storie585

    True numbers matching 1965 Buick GS

    storie585, Jun 8, 2011 ... 2 3
    Replies:
    42
    Views:
    5,780
    Bigpig455
    Jul 11, 2011
  17. simon.crumb

    55 buick special shocks

    simon.crumb, Jul 7, 2010
    Replies:
    15
    Views:
    5,752
    simon.crumb
    May 12, 2015
  18. gsgtx

    26 thousand piston clearance

    gsgtx, Sep 29, 2017 ... 2 3 4
    Replies:
    73
    Views:
    5,725
    dlmwtvl
    Oct 31, 2017
  19. rsmalling

    Got my 425 Block back from the machine shop (some pics)

    rsmalling, Jul 21, 2012 ... 2 3
    Replies:
    48
    Views:
    5,718
    doc
    Nov 29, 2012
  20. DualQuad55

    Smokey Yunick prepped 600hp NH?

    DualQuad55, Feb 23, 2008 ... 2
    Replies:
    22
    Views:
    5,712
    John Codman
    Mar 5, 2011
  21. gsgtx

    buick 300 engine in hot rod magazine

    gsgtx, Jan 14, 2011 ... 2
    Replies:
    20
    Views:
    5,680
    doc
    Jan 16, 2011
  22. buickcoach

    supercharger for nailhead?

    buickcoach, Nov 12, 2005
    Replies:
    13
    Views:
    5,677
    Supercharged364
    Dec 17, 2005
  23. staged67gspwr

    I think,i`m in oil pump trouble

    staged67gspwr, Jan 7, 2003 ... 2
    Replies:
    25
    Views:
    5,663
    wildcat2
    Jan 13, 2003
  24. SpecialWagon65

    Nailhead Projects pics

    SpecialWagon65, Jan 22, 2007
    Replies:
    16
    Views:
    5,658
    yacster
    Jan 27, 2007
  25. 66larkgs

    nailhead paxton supercharger?

    66larkgs, Jan 29, 2006
    Replies:
    14
    Views:
    5,639
    blownriviera
    Mar 8, 2006
  26. Wicked50

    Nailhead Project

    Wicked50, Feb 13, 2011 ... 2
    Replies:
    34
    Views:
    5,570
    Wicked50
    Mar 29, 2011
  27. mrsaturn

    My 1965 Wildcat Project Culmination

    mrsaturn, Mar 31, 2009 ... 2
    Replies:
    21
    Views:
    5,562
    SpecialWagon65
    Sep 5, 2010
  28. 66gsconv

    couldnt drive to yardleys last week, so

    66gsconv, May 30, 2011 ... 2 3
    Replies:
    42
    Views:
    5,537
    66gsconv
    Sep 24, 2013
  29. 61Bubbletop

    Nailhead Water Pump...

    61Bubbletop, Jul 18, 2006
    Replies:
    13
    Views:
    5,513
    kilkm
    Jul 23, 2006
  30. weim55

    What's the correct green for early nailheads?

    weim55, Jun 22, 2010 ... 2
    Replies:
    23
    Views:
    5,506
    william.ali.kay
    Aug 19, 2010
  31. PbSLED

    History of the Nailhead ...

    PbSLED, May 9, 2004
    Replies:
    11
    Views:
    5,481
    pooods
    Jun 7, 2004
  32. jarrett

    Best head gasket for nailhead?

    jarrett, Nov 1, 2013 ... 2
    Replies:
    32
    Views:
    5,456
    sean Buick 76
    Nov 7, 2013
  33. Wicked50

    Trans Decision

    Wicked50, Mar 6, 2010 ... 2 3 4
    Replies:
    66
    Views:
    5,446
    doc
    Apr 18, 2010
  34. Wicked50

    Edelbrock Carbs

    Wicked50, Jul 6, 2010 ... 2
    Replies:
    23
    Views:
    5,443
    funkyriv
    Nov 13, 2010
  35. gordon2456

    425 crate engine?

    gordon2456, Mar 29, 2007
    Replies:
    8
    Views:
    5,430
    Topless64-455
    Apr 1, 2007
  36. George Bednar

    Torque specs for Nailhead 401

    George Bednar, Mar 17, 2003
    Replies:
    10
    Views:
    5,402
    Trikeman72
    Oct 19, 2010
  37. Brian

    Nailhead balance problem

    Brian, Mar 8, 2004 ... 2
    Replies:
    29
    Views:
    5,369
    GranSportSedan
    Mar 15, 2004
  38. 4toe

    hot rod nailhead pics.

    4toe, Jun 2, 2006 ... 2
    Replies:
    27
    Views:
    5,367
    4toe
    Jul 9, 2006
  39. 63-CAT

    What oil to use?

    63-CAT, Apr 28, 2013 ... 2
    Replies:
    36
    Views:
    5,365
    John Codman
    Jul 5, 2013
  40. Aussie V8

    Nailhead ignition advice.

    Aussie V8, Sep 21, 2014 ... 2
    Replies:
    31
    Views:
    5,354
    Aussie V8
    Sep 28, 2014
  41. TXGS

    T Bucket Progress

    TXGS, May 24, 2011 ... 2
    Replies:
    27
    Views:
    5,326
    desertdroog
    Dec 13, 2012
  42. Zuk33

    first nailhead rebuild

    Zuk33, Jul 27, 2009
    Replies:
    11
    Views:
    5,318
    nailheadnut
    Aug 9, 2009
  43. CameoInvicta

    Finished the nitrous install

    CameoInvicta, Oct 12, 2014 ... 2
    Replies:
    32
    Views:
    5,316
    8ad-f85
    Oct 28, 2014
  44. gsgtx

    mini stroker at the drag strip

    gsgtx, Sep 27, 2014 ... 2
    Replies:
    27
    Views:
    5,313
    Bigpig455
    Sep 30, 2014
  45. gs66

    Some Buicks from the Power Tour

    gs66, Jun 15, 2014 ... 2
    Replies:
    27
    Views:
    5,285
    nekkidhillbilly
    Apr 18, 2016
  46. lob87WE4

    TRI POWER on a Nailhead

    lob87WE4, Feb 16, 2006
    Replies:
    17
    Views:
    5,274
    STAGE III
    Feb 20, 2006
  47. Wicked50

    Cams YEA or NAY

    Wicked50, Jul 9, 2010 ... 2 3
    Replies:
    56
    Views:
    5,269
    66gsconv
    Feb 28, 2013
  48. bullheimer

    what is normal head temp with IR gun?

    bullheimer, Sep 15, 2016 ... 2 3
    Replies:
    42
    Views:
    5,266
    Mark Demko
    Sep 21, 2019
  49. Simon

    hydraulic lifter ticking

    Simon, Dec 25, 2007 ... 2
    Replies:
    28
    Views:
    5,265
    Schurkey
    Jan 18, 2008
  50. BuickGS65

    Anyone else had ground clearance issues with the TA '65-'66 Sky/GS nailhead headers?

    BuickGS65, Apr 16, 2009 ... 2 3
    Replies:
    54
    Views:
    5,244
    Poppaluv
    Oct 27, 2009
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