'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. doc
    Sticky

    Doc's dual plane mod and port matching stky

    doc, Mar 24, 2011 ... 7 8 9
    Replies:
    177
    Views:
    67,326
    jw1955buick
    Sep 17, 2021
  2. Adam Whitman
    Sticky

    Nailhead Info/Parts Sources

    Adam Whitman, Apr 14, 2002 ... 2 3
    Replies:
    43
    Views:
    58,418
    flynbuick
    Feb 25, 2012
  3. DualQuad55

    Tom's 'roller rockers'

    DualQuad55, Dec 18, 2006 ... 11 12 13
    Replies:
    254
    Views:
    89,777
    telriv
    Mar 19, 2019
  4. ahhh65riv

    2x4 intake flow & performance data

    ahhh65riv, Nov 15, 2006 ... 11 12 13
    Replies:
    254
    Views:
    59,033
    DeuceCoupe
    Mar 20, 2012
  5. buickbonehead

    New Super Wildcat WOT T-Shirts & Dual Quad Riviera Too!

    buickbonehead, Nov 17, 2007 ... 14 15 16
    Replies:
    317
    Views:
    42,977
    buickbonehead
    Jun 19, 2011
  6. SpecialWagon65

    Tom Telesco, working on GOOD pistons for the Nailhead!

    SpecialWagon65, Nov 17, 2013 ... 5 6 7
    Replies:
    128
    Views:
    32,291
    telriv
    Oct 8, 2015
  7. Deadsled59

    59 Nailhead Rebuild SAGA

    Deadsled59, Jan 4, 2016 ... 12 13 14
    Replies:
    271
    Views:
    31,329
    Deadsled59
    Aug 23, 2023
  8. John Codman

    425 Camshaft questions.

    John Codman, Aug 5, 2010 ... 4 5 6
    Replies:
    112
    Views:
    25,942
    gsgtx
    Mar 20, 2012
  9. wkillgs

    '66 GS Dealer Race car

    wkillgs, Nov 12, 2006 ... 5 6 7
    Replies:
    127
    Views:
    25,029
    wkillgs
    May 2, 2022
  10. wkillgs

    Interesting head modification

    wkillgs, Sep 6, 2008 ... 7 8 9
    Replies:
    178
    Views:
    23,247
    66gsconv
    Jun 2, 2011
  11. Adam Whitman

    Nailhead Parts

    Adam Whitman, Feb 5, 2002 ... 2 3
    Replies:
    48
    Views:
    22,183
    bobbybuick
    Jun 25, 2013
  12. TAANK

    ignition coil wiring

    TAANK, Mar 12, 2008
    Replies:
    14
    Views:
    20,249
    Ken Mild
    Oct 20, 2008
  13. CameoInvicta

    Comp Cams offering Nailhead Thumpr

    CameoInvicta, Nov 30, 2009 ... 3 4 5
    Replies:
    99
    Views:
    19,657
    TAANK
    Apr 15, 2011
  14. wkillgs

    Post your Cam Specs!

    wkillgs, Nov 18, 2003 ... 2 3
    Replies:
    49
    Views:
    18,331
    gsgtx
    Mar 10, 2013
  15. funkyriv

    High Performance Nailheads

    funkyriv, Jan 28, 2008 ... 5 6 7
    Replies:
    129
    Views:
    17,023
    nekkidhillbilly
    Mar 30, 2008
  16. TAANK

    toms roller rockers vs cam and valves from ta

    TAANK, Sep 17, 2007 ... 2 3 4
    Replies:
    65
    Views:
    15,912
    kitabel
    Feb 4, 2010
  17. whatever

    Da Nailhead adventures

    whatever, Aug 1, 2013 ... 2 3
    Replies:
    46
    Views:
    15,900
    PGSS
    Jan 22, 2024
  18. RJBT

    Cleaning 401 rockers/lifters - Dirty ?

    RJBT, Jan 30, 2011 ... 5 6 7
    Replies:
    133
    Views:
    15,264
    bhambulldog
    Jun 6, 2011
  19. gsgtx

    dyno numbers 425 stroked nailhead

    gsgtx, Jun 2, 2013 ... 3 4 5
    Replies:
    95
    Views:
    15,241
    gsgtx
    Jun 21, 2014
  20. KDML

    401 vs 425

    KDML, Nov 7, 2009 ... 2 3 4
    Replies:
    62
    Views:
    14,562
    CameoInvicta
    Nov 21, 2010
  21. arcticjoel

    Firing order, placing of sparkplugwires

    arcticjoel, Mar 31, 2005
    Replies:
    12
    Views:
    14,439
    R Bear
    Apr 2, 2005
  22. SpecialWagon65

    Nailhead Dyno'd

    SpecialWagon65, Apr 21, 2008 ... 2 3
    Replies:
    43
    Views:
    14,255
    SpecialWagon65
    Dec 14, 2016
  23. UntamedKitty

    '66 401 with Russ Martins 425 cam...Grrrrrrrr!

    UntamedKitty, Oct 30, 2014 ... 2 3 4
    Replies:
    76
    Views:
    13,876
    66BulldogGS
    Feb 2, 2015
  24. 66GSconv.

    401 short block

    66GSconv., Feb 9, 2011 ... 2 3 4
    Replies:
    63
    Views:
    13,623
    66gsconv
    Sep 18, 2012
  25. Metty

    Edelbrock 1406 (600cfm) to 401 Nailhead HELP!

    Metty, Mar 23, 2009
    Replies:
    17
    Views:
    13,595
    1966buickgs
    Apr 17, 2016
  26. Deadsled59

    1959 Buick 401 Nailhead Headers

    Deadsled59, Jan 16, 2011 ... 2
    Replies:
    34
    Views:
    13,262
    Deadsled59
    Jul 19, 2012
  27. 66gsconv

    The great nailhead intake comparison

    66gsconv, Mar 12, 2013 ... 3 4 5
    Replies:
    84
    Views:
    13,180
    Bigpig455
    Apr 3, 2017
  28. urslo

    425 Dyno Results

    urslo, Jun 15, 2012 ... 2 3
    Replies:
    51
    Views:
    13,046
    66gsconv
    Nov 22, 2012
  29. william.ali.kay

    401 Aluminium 4 barrel intake

    william.ali.kay, Mar 1, 2011 ... 2 3
    Replies:
    55
    Views:
    12,950
    doc
    Sep 29, 2011
  30. RJBT

    401 Nailhead not running smooth

    RJBT, Dec 19, 2010 ... 2 3 4
    Replies:
    69
    Views:
    12,602
    RJBT
    Jan 10, 2012
  31. ahhh65riv

    You want shiney Nailhead Pulleys?

    ahhh65riv, Dec 9, 2009 ... 2 3
    Replies:
    53
    Views:
    12,469
    ahhh65riv
    Jan 19, 2012
  32. JESUPERCAT

    Dragster update

    JESUPERCAT, Aug 13, 2010 ... 2 3 4
    Replies:
    65
    Views:
    12,434
    JESUPERCAT
    May 10, 2011
  33. donut364

    Edelbrock remaking nailhead parts go and vote!!!

    donut364, Jan 28, 2009 ... 3 4 5
    Replies:
    82
    Views:
    12,416
    sideburn satan
    Dec 10, 2009
  34. TXGS

    Nail Head T-bucket

    TXGS, Oct 2, 2009 ... 2 3
    Replies:
    58
    Views:
    12,412
    daviidwilson
    Nov 9, 2010
  35. CTX-SLPR

    Carter AFB Electric Choke Conversion

    CTX-SLPR, Nov 6, 2006 ... 2
    Replies:
    30
    Views:
    12,404
    70sLark
    Oct 24, 2008
  36. 4toe

    EELCO Q&A thread

    4toe, Nov 1, 2009 ... 2 3 4
    Replies:
    61
    Views:
    12,222
    TAANK
    Nov 24, 2010
  37. The Big Guy

    Let's see those nailhead engine bays

    The Big Guy, Feb 1, 2019 ... 5 6 7
    Replies:
    121
    Views:
    12,161
    Kevallino
    Mar 13, 2023
  38. gsgtx

    having a mini stroke

    gsgtx, Nov 18, 2010 ... 2 3
    Replies:
    58
    Views:
    11,908
    66gsconv
    May 22, 2013
  39. donut364

    nailhead speed parts let's see them

    donut364, Jul 16, 2008 ... 2 3
    Replies:
    40
    Views:
    11,587
    Marty World
    Nov 13, 2009
  40. musclecared

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

    musclecared, Jun 13, 2003 ... 2 3
    Replies:
    44
    Views:
    11,481
    nailheadnut
    May 23, 2007
  41. 487nailhead

    Egge Machine Nailhead Pistons (Junk Do Not Use)

    487nailhead, Aug 31, 2013 ... 2 3
    Replies:
    49
    Views:
    11,438
    401Riviera
    Jan 9, 2014
  42. KDML

    New Engine is Knocking

    KDML, Jun 12, 2014 ... 3 4 5
    Replies:
    94
    Views:
    11,093
    DigDugMd
    Sep 1, 2014
  43. r0ckstarr

    TBI for Nailheads

    r0ckstarr, Sep 9, 2009 ... 2
    Replies:
    30
    Views:
    11,091
    Nothingface5384
    Jun 19, 2010
  44. Bigpig455

    ST-300 Hop Up!

    Bigpig455, Nov 17, 2012 ... 3 4 5
    Replies:
    94
    Views:
    10,940
    nekkidhillbilly
    Apr 7, 2013
  45. OlySezHey

    Stock vs HEI vs MSD performance/cost

    OlySezHey, Feb 5, 2010 ... 2
    Replies:
    26
    Views:
    10,857
    DaWildcat
    May 1, 2013
  46. 2TONSTAGE1

    Want to build a Gasser Nailhead, some questions

    2TONSTAGE1, Feb 24, 2007 ... 2
    Replies:
    26
    Views:
    10,544
    GKMoz
    Jul 25, 2020
  47. Mister T

    What's that clicking noise?

    Mister T, Jun 18, 2012 ... 3 4 5
    Replies:
    89
    Views:
    10,416
    66electrafied
    Aug 7, 2012
  48. CDN SS

    Cleaning Block.. Water Jacket rust

    CDN SS, May 12, 2010 ... 2
    Replies:
    23
    Views:
    10,178
    87GN@Tahoe
    May 19, 2010
  49. 56buickboy

    Rebuilt 425 now junk?

    56buickboy, Aug 5, 2007 ... 2 3
    Replies:
    43
    Views:
    10,115
    doc
    Jan 19, 2013
  50. CameoInvicta

    Pulling engine - where to hook chain to?

    CameoInvicta, Jan 18, 2010 ... 2
    Replies:
    31
    Views:
    10,114
    1967GS340
    Jan 23, 2010
  51. JESUPERCAT

    Nailhead Race Class 04

    JESUPERCAT, Feb 13, 2004 ... 2
    Replies:
    32
    Views:
    10,085
    sharkeymark
    Jan 31, 2009
  52. mr62buick

    aluminum nail-heads

    mr62buick, Dec 1, 2013 ... 2 3
    Replies:
    44
    Views:
    10,056
    devildog93
    Feb 4, 2014
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