'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. GSFredsbuddy

    401 Auto going to a 4 speed

    GSFredsbuddy, Feb 14, 2021
    Replies:
    3
    Views:
    421
    John Codman
    Feb 23, 2021
  2. Houmark

    Radiator interchange..

    Houmark, Feb 13, 2021
    Replies:
    10
    Views:
    460
    Houmark
    Feb 15, 2021
  3. PGSS

    Nailhead weather sensitivity.

    PGSS, Feb 12, 2021
    Replies:
    18
    Views:
    814
    Stevem
    Aug 27, 2021
  4. Duly

    Nailhead coil voltage

    Duly, Feb 7, 2021
    Replies:
    5
    Views:
    564
    LARRY70GS
    Aug 11, 2021
  5. GSFredsbuddy

    66 GS four speed crossmember advice needed

    GSFredsbuddy, Feb 6, 2021
    Replies:
    13
    Views:
    524
    jmos4
    Feb 10, 2021
  6. Dan Hach

    Distributor endplay for a Nailhead

    Dan Hach, Jan 26, 2021
    Replies:
    9
    Views:
    452
    philbquick
    Jan 29, 2021
  7. Michael Neville

    Fan Blade 401

    Michael Neville, Jan 25, 2021
    Replies:
    10
    Views:
    626
    Michael Neville
    Jan 30, 2021
  8. Dan Hach

    Lubricant cup under distributor points plate

    Dan Hach, Jan 21, 2021
    Replies:
    2
    Views:
    260
    Dan Hach
    Jan 21, 2021
  9. GSFredsbuddy

    66 GS 401 / 4 speed

    GSFredsbuddy, Jan 19, 2021
    Replies:
    4
    Views:
    462
    philbquick
    Jan 19, 2021
  10. 66rivnail

    Nailhead rocker assembly question

    66rivnail, Jan 9, 2021
    Replies:
    3
    Views:
    465
    telriv
    Jan 27, 2021
  11. suntreemcanic

    Ground location on a nailhead

    suntreemcanic, Jan 8, 2021
    Replies:
    8
    Views:
    535
    John Codman
    Jul 28, 2022
  12. JOHN NYSTROM

    Nail power

    JOHN NYSTROM, Jan 4, 2021
    Replies:
    11
    Views:
    731
    Dan Hach
    Jan 15, 2021
  13. lbrod

    65 Skylark GS cam

    lbrod, Dec 23, 2020
    Replies:
    2
    Views:
    369
    lbrod
    Dec 23, 2020
  14. Chune

    200 4R Trans

    Chune, Dec 13, 2020
    Replies:
    15
    Views:
    1,125
    nekkidhillbilly
    Jan 18, 2021
  15. JOHN NYSTROM

    Carb Options for a 63 401

    JOHN NYSTROM, Dec 6, 2020
    Replies:
    5
    Views:
    343
    1972Mach1
    Dec 7, 2020
  16. suntreemcanic

    Vibration

    suntreemcanic, Nov 20, 2020
    Replies:
    14
    Views:
    840
    sean Buick 76
    Jun 16, 2021
  17. Chuck Bridges

    Oil Pressure Question

    Chuck Bridges, Nov 5, 2020
    Replies:
    16
    Views:
    790
    telriv
    Nov 16, 2020
  18. Gavin Rewell

    1964 Riviera 425 Edelbrock 750

    Gavin Rewell, Oct 25, 2020
    Replies:
    4
    Views:
    395
    Lobucrod
    Oct 25, 2020
  19. Dan Hach

    Milling deck and heads

    Dan Hach, Oct 22, 2020
    Replies:
    3
    Views:
    401
    Stevem
    Oct 23, 2020
  20. Svperhate

    Problem with riviera 465 wildcat

    Svperhate, Oct 15, 2020 ... 2
    Replies:
    21
    Views:
    1,140
    Dan Hach
    Oct 22, 2020
  21. Lobucrod

    Nailhead question

    Lobucrod, Oct 6, 2020
    Replies:
    9
    Views:
    776
    PGSS
    Oct 18, 2020
  22. gs65

    Aluminum Valve covers

    gs65, Oct 5, 2020 ... 2
    Replies:
    27
    Views:
    2,196
    87GN@Tahoe
    Jul 11, 2021
  23. bcoyour

    Car sputters and dies after driving for about 10 mins.

    bcoyour, Sep 30, 2020
    Replies:
    12
    Views:
    1,372
    LARRY70GS
    Oct 1, 2020
  24. 73BuickEstate

    Coolant on top of engine

    73BuickEstate, Sep 27, 2020
    Replies:
    7
    Views:
    401
    73BuickEstate
    Sep 29, 2020
  25. The Big Guy

    Which GM oil filter for 401?

    The Big Guy, Sep 26, 2020
    Replies:
    4
    Views:
    1,167
    BamaWildcat
    Oct 9, 2020
  26. Doomsday Graphix

    Simple Wiring Question

    Doomsday Graphix, Sep 25, 2020
    Replies:
    4
    Views:
    330
    LARRY70GS
    Sep 25, 2020
  27. Dragdoc

    Starter relay

    Dragdoc, Sep 22, 2020
    Replies:
    0
    Views:
    349
    Dragdoc
    Sep 22, 2020
  28. Duly

    Rocker arm oil splash guard 401 nailhead

    Duly, Sep 16, 2020
    Replies:
    6
    Views:
    696
    66GSconv.
    Nov 6, 2020
  29. Doomsday Graphix

    Running in new 425 build. Oil pressure?

    Doomsday Graphix, Sep 12, 2020
    Replies:
    5
    Views:
    362
    John Codman
    Sep 15, 2020
  30. Dragdoc

    Generator to alternator

    Dragdoc, Sep 2, 2020
    Replies:
    7
    Views:
    677
    tmillsr
    Feb 23, 2021
  31. SubCool

    Noisy driver's side lifters

    SubCool, Sep 2, 2020
    Replies:
    6
    Views:
    536
    Babeola
    Sep 3, 2020
  32. wkillgs

    Nailhead book coming from SA Design, Oct 2020

    wkillgs, Aug 29, 2020
    Replies:
    10
    Views:
    1,093
    Schurkey
    Feb 22, 2022
  33. Nickcee61

    Fuel pump eccentric

    Nickcee61, Aug 19, 2020
    Replies:
    0
    Views:
    245
    Nickcee61
    Aug 19, 2020
  34. JeanChretien

    drain plug on 425 block part 2

    JeanChretien, Aug 17, 2020
    Replies:
    2
    Views:
    470
    JeanChretien
    Aug 23, 2020
  35. Dragdoc

    Fuel pump block off

    Dragdoc, Aug 17, 2020
    Replies:
    6
    Views:
    357
    Duly
    Aug 23, 2020
  36. Doomsday Graphix

    Help Identifying wire

    Doomsday Graphix, Aug 16, 2020
    Replies:
    4
    Views:
    322
    Doomsday Graphix
    Aug 21, 2020
  37. SubCool

    Crower cam kit

    SubCool, Aug 15, 2020
    Replies:
    7
    Views:
    420
    wkillgs
    Aug 17, 2020
  38. Wildcat GS

    `65 GS post drag car

    Wildcat GS, Aug 14, 2020
    Replies:
    2
    Views:
    374
    gs66
    Aug 14, 2020
  39. Nickcee61

    I'm Exhausted!

    Nickcee61, Aug 12, 2020
    Replies:
    2
    Views:
    370
    Nickcee61
    Aug 15, 2020
  40. Fragzem

    Idle RPM misfire

    Fragzem, Aug 8, 2020 ... 2
    Replies:
    24
    Views:
    1,897
    Fragzem
    Mar 25, 2021
  41. JeanChretien

    carburetor upgrade

    JeanChretien, Aug 6, 2020
    Replies:
    5
    Views:
    573
    DEADMANSCURVE
    Aug 18, 2020
  42. ohioscott

    Rebuilt nail head going to be listed

    ohioscott, Aug 4, 2020
    Replies:
    8
    Views:
    558
    John Codman
    Sep 15, 2020
  43. Dragdoc

    Timing

    Dragdoc, Jul 30, 2020
    Replies:
    14
    Views:
    811
    gsgtx
    Aug 1, 2020
  44. SubCool

    Dual quads, progressive or not?

    SubCool, Jul 28, 2020
    Replies:
    7
    Views:
    604
    Stevem
    Aug 3, 2020
  45. Alexswede

    Something funky going on, PSbelt.

    Alexswede, Jul 23, 2020
    Replies:
    12
    Views:
    601
    Alexswede
    Jul 28, 2020
  46. Roycroft

    322 Manual Transmission Options

    Roycroft, Jul 20, 2020
    Replies:
    11
    Views:
    1,475
    Dragdoc
    Dec 7, 2020
  47. jhoppeolds

    This is what a Wisconsin winter and not enough antifreeze does to your nailhead

    jhoppeolds, Jul 19, 2020
    Replies:
    19
    Views:
    1,254
    Stevem
    Jan 27, 2021
  48. Devin

    ST300 Nailhead Trans filter?

    Devin, Jul 12, 2020
    Replies:
    3
    Views:
    255
    Devin
    Jul 13, 2020
  49. d2_willys

    Need nailhead dimension

    d2_willys, Jul 10, 2020
    Replies:
    2
    Views:
    274
    d2_willys
    Jul 12, 2020
  50. hjsonnie

    Tom's mini starter wiring

    hjsonnie, Jul 7, 2020
    Replies:
    5
    Views:
    441
    telriv
    Jul 11, 2020
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