'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. Adam Whitman

    Nailhead Parts

    Adam Whitman, Feb 5, 2002 ... 2 3
    Replies:
    48
    Views:
    22,230
    bobbybuick
    Jun 25, 2013
  2. rsmalling

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

    rsmalling, Jul 21, 2012 ... 2 3
    Replies:
    48
    Views:
    5,732
    doc
    Nov 29, 2012
  3. 6671

    Edelbrock aluminum heads for but what about us...

    6671, Jan 13, 2008 ... 2 3
    Replies:
    48
    Views:
    9,078
    DualQuad55
    May 10, 2008
  4. staged67gspwr

    Runnin hotter than normal,need suggestions

    staged67gspwr, Jun 3, 2004 ... 2 3
    Replies:
    48
    Views:
    2,697
    staged67gspwr
    Aug 23, 2004
  5. Kqqlcat

    401 Started Smoking

    Kqqlcat, Jun 22, 2017 ... 2 3
    Replies:
    47
    Views:
    4,450
    Kqqlcat
    Aug 16, 2017
  6. snake

    Doc. Tell me all about the 091 super wildcat cam

    snake, Feb 28, 2013 ... 2 3
    Replies:
    47
    Views:
    3,873
    snake
    Apr 22, 2013
  7. PEMracingengine

    New CHI-TOWN Nailhead

    PEMracingengine, Jul 26, 2012 ... 2 3
    Replies:
    47
    Views:
    7,132
    PEMracingengine
    Mar 14, 2013
  8. whatever

    Da Nailhead adventures

    whatever, Aug 1, 2013 ... 2 3
    Replies:
    46
    Views:
    16,028
    PGSS
    Jan 22, 2024
  9. NewSchool

    Sanderson Headers for my 63 Riviera

    NewSchool, Oct 17, 2016 ... 2 3
    Replies:
    46
    Views:
    6,278
    telriv
    Dec 21, 2016
  10. 66gsconv

    carb spacer

    66gsconv, Feb 13, 2011 ... 2 3
    Replies:
    46
    Views:
    6,745
    CameoInvicta
    Mar 30, 2014
  11. gsgtx

    how do you get this car out of 2nd gear

    gsgtx, Feb 10, 2013 ... 2 3
    Replies:
    46
    Views:
    4,209
    Bigpig455
    Mar 9, 2013
  12. r0ckstarr

    My car has a backfiring disorder..

    r0ckstarr, Mar 13, 2009 ... 2 3
    Replies:
    46
    Views:
    5,932
    r0ckstarr
    Apr 8, 2009
  13. Wicked50

    Gear Vendors vs 4L60E

    Wicked50, Aug 30, 2015 ... 2 3
    Replies:
    45
    Views:
    6,877
    8ad-f85
    Sep 8, 2015
  14. 66gsconv

    66 4 speed

    66gsconv, Jan 3, 2008 ... 2 3
    Replies:
    45
    Views:
    7,034
    gs66
    Nov 22, 2012
  15. 68riviera430

    Is a nailhead hard to remove?

    68riviera430, Feb 19, 2010 ... 2 3
    Replies:
    45
    Views:
    3,173
    CameoInvicta
    Mar 5, 2010
  16. BuickStreet

    Brand New 425 found!

    BuickStreet, Aug 13, 2009 ... 2 3
    Replies:
    45
    Views:
    4,782
    BuickStreet
    Aug 26, 2009
  17. mr62buick

    aluminum nail-heads

    mr62buick, Dec 1, 2013 ... 2 3
    Replies:
    44
    Views:
    10,199
    devildog93
    Feb 4, 2014
  18. musclecared

    What mid 60's engine air cleaner said "Wildcat GS"

    musclecared, Jun 13, 2003 ... 2 3
    Replies:
    44
    Views:
    11,507
    nailheadnut
    May 23, 2007
  19. Rockable
    Redirect

    61 Nailhead AC install

    Rockable, Aug 10, 2022 ... 2 3
    Replies:
    –
    Views:
    –
    N/A
  20. Dan Hach

    62 Nailhead rebuild

    Dan Hach, Aug 25, 2021 ... 2 3
    Replies:
    43
    Views:
    1,883
    Dan Hach
    May 6, 2022
  21. SpecialWagon65

    Nailhead Dyno'd

    SpecialWagon65, Apr 21, 2008 ... 2 3
    Replies:
    43
    Views:
    14,307
    SpecialWagon65
    Dec 14, 2016
  22. Houmark

    Recurved stock distributor, on stock 401"?

    Houmark, Feb 4, 2014 ... 2 3
    Replies:
    43
    Views:
    2,963
    Houmark
    Mar 2, 2014
  23. 56buickboy

    Rebuilt 425 now junk?

    56buickboy, Aug 5, 2007 ... 2 3
    Replies:
    43
    Views:
    10,146
    doc
    Jan 19, 2013
  24. CameoInvicta

    Comp Cams Thumpr Install

    CameoInvicta, Apr 9, 2012 ... 2 3
    Replies:
    43
    Views:
    6,639
    CameoInvicta
    Jul 6, 2012
  25. 66larkgs

    new eelco intake nailhead

    66larkgs, Sep 30, 2008 ... 2 3
    Replies:
    43
    Views:
    6,443
    CameoInvicta
    Dec 21, 2008
  26. bullheimer

    what is normal head temp with IR gun?

    bullheimer, Sep 15, 2016 ... 2 3
    Replies:
    42
    Views:
    5,288
    Mark Demko
    Sep 21, 2019
  27. Dznuggets

    57 Barn find has bent push rods and stuck valves

    Dznuggets, Sep 20, 2016 ... 2 3
    Replies:
    42
    Views:
    4,672
    Smartin
    Apr 2, 2017
  28. 66larkgs

    hurt the 401 nailhead!!! need ---9:1 forged pistons/bearings

    66larkgs, Dec 16, 2011 ... 2 3
    Replies:
    42
    Views:
    8,229
    HULK
    Jan 6, 2014
  29. 66gsconv

    couldnt drive to yardleys last week, so

    66gsconv, May 30, 2011 ... 2 3
    Replies:
    42
    Views:
    5,552
    66gsconv
    Sep 24, 2013
  30. 401Riviera

    400 hp, 500 tq .030 over 401?

    401Riviera, Oct 15, 2012 ... 2 3
    Replies:
    42
    Views:
    6,761
    GSBuick65
    Oct 30, 2012
  31. 401nailhead65

    Qjet for a nailhead

    401nailhead65, Aug 22, 2011 ... 2 3
    Replies:
    42
    Views:
    7,485
    6WildCat5
    Apr 11, 2012
  32. storie585

    True numbers matching 1965 Buick GS

    storie585, Jun 8, 2011 ... 2 3
    Replies:
    42
    Views:
    5,812
    Bigpig455
    Jul 11, 2011
  33. TA Perf

    Nailhead Hyd. roller cam, any interest?

    TA Perf, Jul 16, 2008 ... 2 3
    Replies:
    42
    Views:
    8,894
    63 Rivi
    Dec 10, 2008
  34. 79xs1100

    425 AC Brackets

    79xs1100, Sep 23, 2007 ... 2 3
    Replies:
    42
    Views:
    5,159
    doc
    Mar 26, 2008
  35. d7cook

    65 425 Nailhead questions and needs!

    d7cook, May 30, 2007 ... 2 3
    Replies:
    42
    Views:
    6,141
    d7cook
    Mar 12, 2008
  36. 55spcl

    Shirt Ive been working on for the Nailhead people

    55spcl, Feb 12, 2006 ... 2 3
    Replies:
    42
    Views:
    2,397
    mainebuick
    Mar 19, 2006
  37. EEE

    Engine trouble

    EEE, Apr 23, 2018 ... 2 3
    Replies:
    41
    Views:
    2,348
    EEE
    Jun 4, 2018
  38. KDML

    Hastings Piston Oil Ring Install

    KDML, Aug 11, 2013 ... 2 3
    Replies:
    41
    Views:
    9,660
    wilber
    Aug 30, 2013
  39. staged67gspwr

    from Carter to Q-jet for questions

    staged67gspwr, Feb 12, 2004 ... 2 3
    Replies:
    41
    Views:
    1,780
    staged67gspwr
    Feb 15, 2004
  40. staged67gspwr

    Whats stock size exhaust for `65 GS?

    staged67gspwr, Jul 28, 2003 ... 2 3
    Replies:
    41
    Views:
    1,985
    staged67gspwr
    Aug 4, 2003
  41. Aussie V8

    Started putting new engine together

    Aussie V8, Jun 29, 2017 ... 2 3
    Replies:
    40
    Views:
    3,738
    Aussie V8
    Aug 18, 2017
  42. gmman63

    Hi perf parts for 63 401?

    gmman63, Mar 11, 2011 ... 2 3
    Replies:
    40
    Views:
    6,741
    bhambulldog
    Mar 21, 2011
  43. donut364

    nailhead speed parts let's see them

    donut364, Jul 16, 2008 ... 2 3
    Replies:
    40
    Views:
    11,657
    Marty World
    Nov 13, 2009
  44. Aussie V8

    Holley on a Nailhead ??

    Aussie V8, Jul 25, 2008 ... 2 3
    Replies:
    40
    Views:
    4,661
    John Henry
    Aug 31, 2009
  45. mrbuick65

    Nailhead overheating

    mrbuick65, Feb 9, 2008 ... 2 3
    Replies:
    40
    Views:
    7,298
    doc
    Apr 13, 2008
  46. BuickStreet

    Spiral core plug leads add power!

    BuickStreet, Mar 10, 2003 ... 2 3
    Replies:
    40
    Views:
    3,266
    JR
    Mar 16, 2003
  47. JZRIV

    Degreeing a Cam and its Effect on Manifold Vacuum

    JZRIV, Apr 18, 2016 ... 2
    Replies:
    39
    Views:
    8,450
    BuickMike
    Apr 24, 2016
  48. roadrunnernz

    "... all the right goods" - um, really?

    roadrunnernz, Jan 11, 2014 ... 2
    Replies:
    39
    Views:
    3,165
    CameoInvicta
    Jan 24, 2014
  49. Weezo182

    Post Your Nail Head

    Weezo182, Apr 3, 2008 ... 2
    Replies:
    39
    Views:
    8,917
    mr62buick
    May 14, 2013
  50. mr62buick

    For those who have not seen a SUPERCHARGED Nailhead in awhile....

    mr62buick, Sep 23, 2012 ... 2
    Replies:
    39
    Views:
    6,632
    66larkgs
    Feb 21, 2013
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