Street/strip 400/430/455

Building your GS motor? Ask all questions relating to the late big block here.

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  1. J.Staged

    12-1 comp. & cast iron heads

    J.Staged, Mar 3, 2008
    Replies:
    18
    Views:
    1,682
    CJay
    Mar 28, 2008
  2. Landshark1969

    12.1990 @ 112 first time at the track !!!!

    Landshark1969, Sep 16, 2007 ... 2
    Replies:
    24
    Views:
    2,343
    Landshark1969
    Sep 24, 2007
  3. copperheadgs1

    1231738/1238861 casting block differences?

    copperheadgs1, Mar 20, 2006 ... 2
    Replies:
    23
    Views:
    11,751
    copperheadgs1
    Mar 27, 2006
  4. I970GS455

    12bolt to 9" horsepower loss?

    I970GS455, Jan 26, 2004
    Replies:
    9
    Views:
    1,058
    I970GS455
    Jan 29, 2004
  5. 7 skylark 1

    13.36@102 looking for 12.xx

    7 skylark 1, Mar 19, 2006 ... 2 3
    Replies:
    53
    Views:
    4,577
    7 skylark 1
    Oct 29, 2007
  6. stubnosebrock

    1373719 head gaskets

    stubnosebrock, Feb 17, 2013
    Replies:
    3
    Views:
    480
    RG67BEAST
    Feb 18, 2013
  7. Tom Raschka

    1379242 crankshaft

    Tom Raschka, Oct 23, 2023
    Replies:
    2
    Views:
    247
    Tom Raschka
    Oct 25, 2023
  8. hwprouty

    1382985 Heads

    hwprouty, Jun 18, 2010
    Replies:
    1
    Views:
    1,081
    RG67BEAST
    Jun 18, 2010
  9. BENZ87GN

    13842091

    BENZ87GN, Jul 5, 2015
    Replies:
    4
    Views:
    632
    Jim Weise
    Jul 5, 2015
  10. 70 GMuscle

    140a alternator

    70 GMuscle, Apr 18, 2017
    Replies:
    18
    Views:
    840
    Schurkey
    Apr 22, 2017
  11. GMMADMAN

    14X2.31 K&N on 500 hp build

    GMMADMAN, Mar 15, 2019
    Replies:
    2
    Views:
    334
    GMMADMAN
    Mar 15, 2019
  12. bigz

    15 year old Buick 430

    bigz, May 8, 2006
    Replies:
    3
    Views:
    460
    65specialconver
    May 8, 2006
  13. Ray carlson jr

    15x10 6”backspace?

    Ray carlson jr, May 24, 2023
    Replies:
    0
    Views:
    181
    Ray carlson jr
    May 24, 2023
  14. k.pascoe

    16 finely tuned hammers

    k.pascoe, Jun 27, 2016
    Replies:
    9
    Views:
    611
    christy staunto
    Jun 27, 2016
  15. matt68gs400

    160 or 170 thermostat

    matt68gs400, Aug 5, 2018 ... 2
    Replies:
    21
    Views:
    1,156
    87GN_70GS
    Aug 7, 2018
  16. TORQUED455

    160 or 180 stat?

    TORQUED455, Jul 14, 2007 ... 2
    Replies:
    35
    Views:
    2,795
    BuickBuddy
    Nov 3, 2007
  17. 72GSX

    160 verses 180

    72GSX, Mar 23, 2004
    Replies:
    4
    Views:
    631
    72GSX
    Mar 23, 2004
  18. Electra-fied

    160 vs. 190 tstat...whats better on stock motor?

    Electra-fied, Sep 20, 2012
    Replies:
    18
    Views:
    1,800
    austingta
    Sep 27, 2012
  19. Leviathan

    160* High-flow thermostat probs

    Leviathan, Aug 30, 2004
    Replies:
    8
    Views:
    766
    Leviathan
    Sep 13, 2004
  20. CyberT

    180F thermostat or 160/195?

    CyberT, Jun 13, 2016 ... 2
    Replies:
    25
    Views:
    2,590
    Gary Farmer
    Jun 16, 2016
  21. PeterRomvig

    1964 Skylark 455 swap question.

    PeterRomvig, Sep 11, 2015
    Replies:
    7
    Views:
    1,469
    Joe65SkylarkGS
    Sep 13, 2015
  22. Topless64-455

    1964 Skylark machined metal dash kit?

    Topless64-455, Nov 11, 2007 ... 2
    Replies:
    25
    Views:
    3,356
    Joe65SkylarkGS
    Dec 3, 2007
  23. kid coulson

    1965 425X2 4BBL REAL HP numbers

    kid coulson, Oct 3, 2013
    Replies:
    16
    Views:
    2,900
    flynbuick
    Oct 5, 2013
  24. Schurkey

    1965 430 prototype engine photos--Flint 67 GS

    Schurkey, Oct 8, 2007
    Replies:
    2
    Views:
    795
    72RivGS
    Oct 8, 2007
  25. Gary Farmer

    1965 Buick 430 prototype engine

    Gary Farmer, Mar 28, 2013
    Replies:
    7
    Views:
    1,116
    Flint 67 GS
    Apr 13, 2013
  26. cjef

    1965 buick skaylark coil spring

    cjef, May 2, 2011
    Replies:
    0
    Views:
    330
    cjef
    May 2, 2011
  27. bmdiener

    1965 gran sport

    bmdiener, Mar 16, 2004
    Replies:
    2
    Views:
    651
    bmdiener
    Mar 17, 2004
  28. Joe65SkylarkGS

    1965 Skylark 1/2 inch line fuel pick up and sending unit for the fuel tank

    Joe65SkylarkGS, Jun 5, 2018
    Replies:
    6
    Views:
    494
    HotRodRivi
    Jul 14, 2018
  29. kburras

    1965 Skylark Radiator Support

    kburras, Apr 25, 2013
    Replies:
    6
    Views:
    1,188
    kburras
    Apr 26, 2013
  30. 66spcl

    1966 buick special convertible motor swap please help

    66spcl, Apr 8, 2012
    Replies:
    1
    Views:
    821
    GranSportSedan
    Apr 8, 2012
  31. aaronk227

    1966 Skylark GS with 340 - Possibly Original??

    aaronk227, Jul 8, 2016
    Replies:
    3
    Views:
    451
    wkillgs
    Jul 8, 2016
  32. Tom Miller

    1967 400 Cam specs--Actual not the factory posted bs

    Tom Miller, Oct 17, 2015
    Replies:
    2
    Views:
    482
    LARRY70GS
    Oct 18, 2015
  33. BUQUICK

    1967 400 oil pan okay to use on 1972 455 A-body??

    BUQUICK, Apr 4, 2006
    Replies:
    12
    Views:
    1,129
    texas ranger
    Apr 7, 2006
  34. 73BuickGS455

    1967 400 Valve Cover Grommet

    73BuickGS455, May 21, 2014
    Replies:
    8
    Views:
    722
    73BuickGS455
    Jun 2, 2014
  35. TRIBVERT GSX

    1967 430 bb

    TRIBVERT GSX, Dec 19, 2009
    Replies:
    0
    Views:
    403
    TRIBVERT GSX
    Dec 19, 2009
  36. KDXSR5

    1967 430 Ignition Upgrades

    KDXSR5, Mar 21, 2014
    Replies:
    10
    Views:
    1,915
    67skylark27
    Sep 8, 2014
  37. mineseats9

    1967 BBB Frame pad installation question

    mineseats9, Jan 21, 2022
    Replies:
    2
    Views:
    275
    12lives
    Jan 22, 2022
  38. joshhirst13

    1967 Buick GS Stalled at the Drive Through & Now Wont Crank. Ughhhh!!!!!!

    joshhirst13, Oct 1, 2018
    Replies:
    19
    Views:
    1,391
    Schurkey
    Oct 6, 2018
  39. joshhirst13

    1967 buick gs400 fan shroud?? Did it ever even come with one? Should it be there?????

    joshhirst13, Feb 1, 2013
    Replies:
    5
    Views:
    1,577
    stage1455
    Feb 3, 2013
  40. mjoc

    1967 Buick GS400 Headers.

    mjoc, Nov 3, 2016 ... 2
    Replies:
    23
    Views:
    2,831
    ravensbud
    Nov 11, 2016
  41. Benny428

    1967 Buick GS400 Problems

    Benny428, May 31, 2014
    Replies:
    7
    Views:
    726
    Benny428
    Jun 9, 2014
  42. joshhirst13

    1967 Buick Overheating

    joshhirst13, Nov 4, 2012
    Replies:
    14
    Views:
    4,167
    300sbb_overkill
    Nov 10, 2012
  43. jcamp116

    1967 Buicks with Headers

    jcamp116, Nov 16, 2006 ... 2
    Replies:
    31
    Views:
    2,244
    staged67gspwr
    May 6, 2007
  44. gsman

    1967 Engine Block Codes

    gsman, Sep 10, 2012
    Replies:
    1
    Views:
    538
    LARRY70GS
    Sep 10, 2012
  45. DarkHorse

    1967 GS 400 Engine code

    DarkHorse, Mar 20, 2004
    Replies:
    5
    Views:
    886
    mlh48
    Mar 24, 2004
  46. gsman

    1967 GS 400 Fuel Tank

    gsman, Jan 8, 2012
    Replies:
    1
    Views:
    520
    staged67gspwr
    Jan 8, 2012
  47. LC

    1967 GS 400 Heads

    LC, May 27, 2007
    Replies:
    1
    Views:
    841
    DaWildcat
    May 27, 2007
  48. kburras

    1967 GS400 2 door hardtop has a convertible frame....

    kburras, May 22, 2013
    Replies:
    2
    Views:
    495
    kburras
    May 22, 2013
  49. joshhirst13

    1967 GS400 760 cfm carb versus 800 cfm carb??????

    joshhirst13, Oct 19, 2012
    Replies:
    2
    Views:
    772
    joshhirst13
    Nov 1, 2012
  50. joshhirst13

    1967 GS400 Cam & torque converter question

    joshhirst13, Oct 20, 2012
    Replies:
    2
    Views:
    668
    joshhirst13
    Oct 29, 2012
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