'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. nailheadfrench

    Increase the performance of my 401

    nailheadfrench, Jul 22, 2014 ... 2 3 4
    Replies:
    63
    Views:
    9,943
    bhambulldog
    Feb 9, 2015
  2. 66GSconv.

    401 short block

    66GSconv., Feb 9, 2011 ... 2 3 4
    Replies:
    63
    Views:
    13,681
    66gsconv
    Sep 18, 2012
  3. NJBuickRacer

    Can a nailhead run 12s NA and be streetable?

    NJBuickRacer, Oct 21, 2003 ... 2 3 4
    Replies:
    63
    Views:
    7,695
    66larkgs
    Mar 18, 2012
  4. gsgtx

    doctors orders

    gsgtx, Jul 27, 2010 ... 2 3 4
    Replies:
    63
    Views:
    7,664
    kitabel
    Nov 10, 2010
  5. KDML

    401 vs 425

    KDML, Nov 7, 2009 ... 2 3 4
    Replies:
    62
    Views:
    14,665
    CameoInvicta
    Nov 21, 2010
  6. 66larkgs

    is there a market for nailhead turbo headers??

    66larkgs, Sep 11, 2011 ... 2 3 4
    Replies:
    61
    Views:
    9,883
    66larkgs
    Dec 7, 2011
  7. 4toe

    EELCO Q&A thread

    4toe, Nov 1, 2009 ... 2 3 4
    Replies:
    61
    Views:
    12,243
    TAANK
    Nov 24, 2010
  8. Bigpig455

    Excessive Fuel Pressure - 65 Gransport

    Bigpig455, Oct 3, 2010 ... 2 3 4
    Replies:
    61
    Views:
    3,793
    wkillgs
    Nov 10, 2010
  9. jimtash

    help. Installed MSD distributor now oil light is on and loud knock

    jimtash, Jun 21, 2008 ... 2 3 4
    Replies:
    61
    Views:
    3,996
    doc
    Jul 6, 2008
  10. 66larkgs

    turbo buick nailhead video

    66larkgs, May 11, 2013 ... 2 3 4
    Replies:
    60
    Views:
    7,140
    66larkgs
    Sep 22, 2013
  11. 68riviera430

    My first nailhead question...

    68riviera430, Feb 3, 2010 ... 2 3 4
    Replies:
    60
    Views:
    8,698
    68riviera430
    Sep 20, 2010
  12. gsgtx

    intake valves

    gsgtx, Nov 29, 2016 ... 2 3
    Replies:
    59
    Views:
    6,424
    gsgtx
    Jun 27, 2017
  13. 401Riviera

    Porting Nailheads, Tips? Do's? Dont's?

    401Riviera, Feb 18, 2013 ... 2 3
    Replies:
    58
    Views:
    7,899
    66gsconv
    Nov 23, 2013
  14. gsgtx

    having a mini stroke

    gsgtx, Nov 18, 2010 ... 2 3
    Replies:
    58
    Views:
    11,933
    66gsconv
    May 22, 2013
  15. TXGS

    Nail Head T-bucket

    TXGS, Oct 2, 2009 ... 2 3
    Replies:
    58
    Views:
    12,443
    daviidwilson
    Nov 9, 2010
  16. funkyriv

    TA Roller Cam

    funkyriv, Jan 22, 2010 ... 2 3
    Replies:
    58
    Views:
    9,129
    telriv
    Oct 17, 2010
  17. 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
  18. Rockable

    1961 364 Nailhead Valve Float

    Rockable, Nov 19, 2022 ... 2 3
    Replies:
    56
    Views:
    1,748
    Rockable
    Dec 30, 2022
  19. Bigpig455

    New Motor

    Bigpig455, Jan 22, 2017 ... 2 3
    Replies:
    56
    Views:
    6,241
    Bigpig455
    Dec 11, 2022
  20. Wicked50

    Cams YEA or NAY

    Wicked50, Jul 9, 2010 ... 2 3
    Replies:
    56
    Views:
    5,270
    66gsconv
    Feb 28, 2013
  21. doc

    Winding down,,,,,

    doc, Dec 1, 2012 ... 2 3
    Replies:
    56
    Views:
    3,688
    Silver Bullet
    Dec 17, 2012
  22. KDML

    My 401 Build Plan

    KDML, Jan 16, 2012 ... 2 3
    Replies:
    56
    Views:
    7,131
    KDML
    Oct 1, 2012
  23. JayZee88

    Ede 800 AVS2 or Holley 870 Street Avenger on 364 nailhead?

    JayZee88, Apr 18, 2020 ... 2 3
    Replies:
    55
    Views:
    3,645
    gs66
    Aug 9, 2023
  24. Aussie V8

    322 from 1955

    Aussie V8, Feb 14, 2014 ... 2 3
    Replies:
    55
    Views:
    8,014
    Aussie V8
    May 1, 2014
  25. CameoInvicta

    Falls flat under load at 5k rpms

    CameoInvicta, Jun 5, 2011 ... 2 3
    Replies:
    55
    Views:
    8,496
    CameoInvicta
    Jun 9, 2012
  26. william.ali.kay

    401 Aluminium 4 barrel intake

    william.ali.kay, Mar 1, 2011 ... 2 3
    Replies:
    55
    Views:
    12,970
    doc
    Sep 29, 2011
  27. JESUPERCAT

    200" injected Nailhead FED

    JESUPERCAT, Mar 24, 2008 ... 2 3
    Replies:
    55
    Views:
    6,531
    Old Pueblo
    Oct 14, 2008
  28. jimtash

    Autozone is discontinuing the Mobil 1 oil filter that fits the Nailhead.......

    jimtash, Jan 25, 2008 ... 2 3
    Replies:
    55
    Views:
    8,445
    jimtash
    Feb 6, 2008
  29. 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:
    5,246
    Poppaluv
    Oct 27, 2009
  30. Blue Wagon

    401 vs. 425?

    Blue Wagon, Mar 13, 2020 ... 2 3
    Replies:
    53
    Views:
    3,363
    GranSportSedan
    Apr 19, 2020
  31. KDML

    Block Inspection

    KDML, Dec 15, 2011 ... 2 3
    Replies:
    53
    Views:
    8,427
    KDML
    Mar 7, 2012
  32. ahhh65riv

    You want shiney Nailhead Pulleys?

    ahhh65riv, Dec 9, 2009 ... 2 3
    Replies:
    53
    Views:
    12,492
    ahhh65riv
    Jan 19, 2012
  33. Brian

    Assembly of Mark Ascher's '65 GS 4-speed car

    Brian, Sep 25, 2007 ... 2 3
    Replies:
    53
    Views:
    6,706
    Mark Ascher
    Jan 15, 2008
  34. Aussie V8

    401 not quite running 100%

    Aussie V8, Feb 8, 2023 ... 2 3
    Replies:
    52
    Views:
    2,029
    Aussie V8
    Aug 13, 2023
  35. nekkidhillbilly

    supercharger question

    nekkidhillbilly, Nov 9, 2016 ... 2 3
    Replies:
    52
    Views:
    4,141
    telriv
    Nov 15, 2016
  36. gsgtx

    Mike Lewis head porter

    gsgtx, Feb 14, 2024 ... 2 3
    Replies:
    51
    Views:
    2,173
    Super Bald Menace
    Mar 1, 2024
  37. 1966buickgs

    401 rebuild with tapping noise...

    1966buickgs, Aug 22, 2016 ... 2 3
    Replies:
    51
    Views:
    5,927
    GSBuick65
    Oct 16, 2016
  38. urslo

    425 Dyno Results

    urslo, Jun 15, 2012 ... 2 3
    Replies:
    51
    Views:
    13,069
    66gsconv
    Nov 22, 2012
  39. Bigpig455

    Need advice - Nailhead noses over at revs...

    Bigpig455, Sep 8, 2012 ... 2 3
    Replies:
    51
    Views:
    3,582
    Bigpig455
    Oct 14, 2012
  40. BamaWildcat

    Rebuilt Nailhead in my 64 Wildcat video series

    BamaWildcat, Dec 31, 2019 ... 2 3
    Replies:
    50
    Views:
    3,310
    BamaWildcat
    Feb 16, 2024
  41. garybuick

    Was the 401 nailhead available with 3 on the tree in 1959?

    garybuick, Jun 11, 2016 ... 2 3
    Replies:
    50
    Views:
    6,388
    doc
    Mar 16, 2017
  42. 66BulldogGS

    The Return of Don's 1966 Skylark GS....The Beginning

    66BulldogGS, Apr 8, 2013 ... 2 3
    Replies:
    50
    Views:
    7,442
    telriv
    Feb 13, 2017
  43. RJBT

    401 Oil pressure - blocked oil passages ?

    RJBT, Jun 16, 2011 ... 2 3
    Replies:
    50
    Views:
    8,669
    RJBT
    Oct 17, 2011
  44. HULK

    fastest nailheads?

    HULK, Jul 8, 2008 ... 2 3
    Replies:
    50
    Views:
    6,959
    87GN@Tahoe
    Sep 11, 2008
  45. larkone

    65 is finshed

    larkone, May 8, 2006 ... 2 3
    Replies:
    50
    Views:
    3,746
    larkone
    Jul 19, 2006
  46. 4toe

    Single 4 aluminum intake sign up / interest thread

    4toe, Feb 27, 2015 ... 2 3
    Replies:
    49
    Views:
    8,454
    Aussie V8
    Sep 4, 2015
  47. flh73

    401 Build "Stock"

    flh73, Mar 30, 2015 ... 2 3
    Replies:
    49
    Views:
    5,993
    gsgtx
    Apr 6, 2015
  48. 487nailhead

    Egge Machine Nailhead Pistons (Junk Do Not Use)

    487nailhead, Aug 31, 2013 ... 2 3
    Replies:
    49
    Views:
    11,476
    401Riviera
    Jan 9, 2014
  49. CarlBraun

    Riviera 425 engine ticking noise

    CarlBraun, Mar 29, 2011 ... 2 3
    Replies:
    49
    Views:
    8,539
    63-CAT
    May 4, 2013
  50. wkillgs

    Post your Cam Specs!

    wkillgs, Nov 18, 2003 ... 2 3
    Replies:
    49
    Views:
    18,378
    gsgtx
    Mar 10, 2013
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