'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. lukiebear69

    425 emergency! water in oil :"(

    lukiebear69, Feb 21, 2012 ... 2
    Replies:
    24
    Views:
    2,023
    lukiebear69
    Feb 24, 2012
  2. urslo

    425 Dyno Results

    urslo, Jun 15, 2012 ... 2 3
    Replies:
    51
    Views:
    13,076
    66gsconv
    Nov 22, 2012
  3. gsgtx

    425 dyno numbers not the stroker

    gsgtx, Jun 3, 2013
    Replies:
    7
    Views:
    1,121
    66gsconv
    Jun 19, 2013
  4. Michael Sørensen

    425 dual quad rough running

    Michael Sørensen, Jun 9, 2019
    Replies:
    5
    Views:
    600
    Houmark
    Jun 11, 2019
  5. RIV425

    425 Distributor Bushings Needed

    RIV425, Oct 25, 2012
    Replies:
    5
    Views:
    560
    RIV425
    Oct 26, 2012
  6. musclehead

    425 cross ram dual 4 barrel intake

    musclehead, Dec 21, 2006
    Replies:
    10
    Views:
    2,203
    doc
    Jul 12, 2008
  7. gordon2456

    425 crate engine?

    gordon2456, Mar 29, 2007
    Replies:
    8
    Views:
    5,432
    Topless64-455
    Apr 1, 2007
  8. Junkman

    425 crankshaft

    Junkman, Jan 6, 2014
    Replies:
    3
    Views:
    442
    Junkman
    Jan 6, 2014
  9. Brian

    425 crank question

    Brian, Jul 23, 2003
    Replies:
    5
    Views:
    720
    buick535
    Jul 24, 2003
  10. Shane64Riv

    425 compression question

    Shane64Riv, Mar 24, 2004
    Replies:
    2
    Views:
    491
    Shane64Riv
    Mar 26, 2004
  11. funkyriv

    425 Challenges

    funkyriv, Jan 16, 2015 ... 2
    Replies:
    24
    Views:
    4,446
    doc
    Jan 27, 2015
  12. 65wildcater

    425 casting numbers

    65wildcater, Oct 11, 2013 ... 2
    Replies:
    25
    Views:
    6,367
    56buickboy
    Dec 10, 2013
  13. John Codman

    425 Camshaft questions.

    John Codman, Aug 5, 2010 ... 4 5 6
    Replies:
    112
    Views:
    26,066
    gsgtx
    Mar 20, 2012
  14. snake

    425 build , set back

    snake, May 7, 2012
    Replies:
    1
    Views:
    1,104
    GS Spoken Here
    May 7, 2012
  15. Nick32vic

    425 Buick Weight?

    Nick32vic, Sep 27, 2006
    Replies:
    9
    Views:
    1,640
    nekkidhillbilly
    Sep 29, 2006
  16. buickgnw

    425 Buick Nailhead Bellhousing Question!!

    buickgnw, May 21, 2004
    Replies:
    0
    Views:
    1,228
    buickgnw
    May 21, 2004
  17. 425 Dual Quad

    425 bore:piston clearances

    425 Dual Quad, Nov 12, 2004
    Replies:
    3
    Views:
    727
    425 Dual Quad
    Nov 16, 2004
  18. GSBuick65

    425 block for sale

    GSBuick65, Oct 15, 2013
    Replies:
    4
    Views:
    1,022
    GSBuick65
    Dec 29, 2013
  19. snake

    425 block clean up

    snake, Jul 23, 2012
    Replies:
    0
    Views:
    814
    snake
    Jul 23, 2012
  20. GSBuick65

    425 block

    GSBuick65, Oct 14, 2010
    Replies:
    2
    Views:
    615
    funkyriv
    Oct 15, 2010
  21. GottaRIV

    425 Balancer bolt problems

    GottaRIV, Sep 2, 2009
    Replies:
    0
    Views:
    367
    GottaRIV
    Sep 2, 2009
  22. GottaRIV

    425 Balancer bolt problems

    GottaRIV, Sep 2, 2009
    Replies:
    8
    Views:
    976
    doc
    Sep 5, 2009
  23. 79xs1100

    425 AC Brackets

    79xs1100, Sep 23, 2007 ... 2 3
    Replies:
    42
    Views:
    5,143
    doc
    Mar 26, 2008
  24. Lee Martin

    425 & Th400

    Lee Martin, Jul 7, 2008
    Replies:
    16
    Views:
    3,182
    nailheadnut
    Jul 13, 2008
  25. R Bear

    425 ,4bbl to 2-4's conversion

    R Bear, Mar 3, 2004
    Replies:
    7
    Views:
    663
    nailheadina67
    Mar 7, 2004
  26. 87GN@Tahoe

    425

    87GN@Tahoe, Dec 9, 2006
    Replies:
    1
    Views:
    648
    Babeola
    Dec 9, 2006
  27. cluxford

    4150 style intake to fit a 364

    cluxford, Jun 14, 2012
    Replies:
    4
    Views:
    1,084
    John Codman
    Jun 19, 2012
  28. jay bird

    413 TAcam

    jay bird, May 11, 2010
    Replies:
    1
    Views:
    548
    CameoInvicta
    May 12, 2010
  29. 401Riviera

    407 Nailhead and st400 update

    401Riviera, Jul 24, 2013
    Replies:
    19
    Views:
    2,033
    wkillgs
    Jul 31, 2013
  30. Ken Adams

    401TRW Forged Pistons

    Ken Adams, Sep 19, 2005
    Replies:
    1
    Views:
    485
    lapham3@aol.com
    Sep 22, 2005
  31. Captjimmy

    401s different hp and compression?

    Captjimmy, Feb 16, 2017
    Replies:
    15
    Views:
    1,697
    8ad-f85
    Nov 19, 2017
  32. Bib Overhalls

    401/ST-400 Torque Converter Bolts

    Bib Overhalls, Nov 9, 2014
    Replies:
    1
    Views:
    601
    lapham3@aol.com
    Nov 10, 2014
  33. bellaero

    401/425 Timing Cover Crank Seal

    bellaero, Jan 15, 2005
    Replies:
    6
    Views:
    1,849
    NailheadinCA
    Jan 16, 2005
  34. Jim Wall

    401/425 rod specs

    Jim Wall, Dec 2, 2005
    Replies:
    1
    Views:
    470
    SpecialWagon65
    Dec 13, 2005
  35. Bib Overhalls

    401/425 Manual Transmission Bellhousing on Craigslist

    Bib Overhalls, Jul 30, 2015
    Replies:
    0
    Views:
    790
    Bib Overhalls
    Jul 30, 2015
  36. stg2NW

    401/425 crank identification help

    stg2NW, Sep 16, 2007
    Replies:
    1
    Views:
    508
    Babeola
    Sep 16, 2007
  37. chuckw2

    401/425 blocks interchangeable?

    chuckw2, Feb 25, 2009
    Replies:
    2
    Views:
    541
    doc
    Feb 26, 2009
  38. custum65GS

    401/200R4 shift points??

    custum65GS, Feb 1, 2012
    Replies:
    17
    Views:
    3,961
    snake
    May 30, 2013
  39. GS455_65

    401-425 Timing Cover

    GS455_65, May 12, 2007
    Replies:
    1
    Views:
    735
    GSBuick65
    May 13, 2007
  40. TA Perf

    401-425 Rear Sump Oil Pan Needed

    TA Perf, Jan 29, 2010 ... 2
    Replies:
    20
    Views:
    4,377
    4toe
    Feb 23, 2010
  41. mark gates

    401-425 questions

    mark gates, Sep 15, 2003
    Replies:
    9
    Views:
    1,975
    mark gates
    Sep 16, 2003
  42. wheelz

    401-425 Old School OFFY 6x2 setup!

    wheelz, May 15, 2009
    Replies:
    8
    Views:
    934
    doc
    Jun 15, 2009
  43. LARRY70GS

    401-425 Nailhead Headers Available

    LARRY70GS, Nov 29, 2003
    Replies:
    3
    Views:
    959
    Babeola
    Dec 3, 2003
  44. 69hellcat

    401-425 heads stock vs ported

    69hellcat, Oct 15, 2021
    Replies:
    7
    Views:
    812
    bos
    Nov 1, 2021
  45. cadmanzx

    401-425 Head Swap

    cadmanzx, Jun 28, 2003
    Replies:
    10
    Views:
    1,250
    Zach
    Jul 20, 2003
  46. 66GSconv.

    401-425 GS motor mounts

    66GSconv., May 3, 2013
    Replies:
    5
    Views:
    956
    PGBuick
    May 7, 2013
  47. lapham3@aol.com

    401- incorrect flexplate phasing-

    lapham3@aol.com, Apr 28, 2014
    Replies:
    3
    Views:
    1,078
    John Codman
    Apr 28, 2014
  48. GranSportSedan

    401- 425 rod length?

    GranSportSedan, Jul 9, 2004
    Replies:
    8
    Views:
    705
    Damian Kolosik
    Jul 15, 2004
  49. Airy Cat

    401, 425 Roller Lifters

    Airy Cat, Jan 26, 2010
    Replies:
    6
    Views:
    2,337
    funkyriv
    Jan 30, 2010
  50. bill lagna

    401, 425 engine codes

    bill lagna, Feb 23, 2011
    Replies:
    4
    Views:
    1,026
    bill lagna
    Feb 24, 2011
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Page 86 of 99