Street/strip 400/430/455

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

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  1. 70purplerag

    Ignition upgrade:MSD,Accel,Crane, Mallory, Jacobs, Holley?

    70purplerag, Sep 23, 2003 ... 2 3 4
    Replies:
    74
    Views:
    26,827
    Schurkey
    May 20, 2016
  2. rkammer

    Help me with some engine build decisions, please............

    rkammer, May 24, 2014 ... 2 3 4
    Replies:
    74
    Views:
    4,589
    pmuller9
    Jun 25, 2014
  3. KenneBelle455

    Problems with fresh 455 rebuild, machine shop

    KenneBelle455, Feb 14, 2018 ... 2 3 4
    Replies:
    75
    Views:
    7,320
    1969RIVI
    May 29, 2020
  4. chrisg

    OK, how do I get my '72 Skylark from 12.20's to 11.80's?

    chrisg, Nov 14, 2014 ... 2 3 4
    Replies:
    75
    Views:
    12,491
    70 gsconvt
    Aug 30, 2015
  5. Jim Weise

    Sneak peek.. STG 2 Iron motor- all the parts from Buick..

    Jim Weise, Dec 3, 2009 ... 2 3 4
    Replies:
    75
    Views:
    12,591
    Aerobatix
    Sep 3, 2014
  6. GNSX

    Tuning a stock 455

    GNSX, Apr 24, 2014 ... 2 3 4
    Replies:
    75
    Views:
    10,004
    GNSX
    May 28, 2014
  7. 68riviera430

    Car starting issues are driving me crazy!

    68riviera430, Dec 7, 2009 ... 2 3 4
    Replies:
    76
    Views:
    3,873
    Daves72
    Dec 15, 2009
  8. whamo

    11 second combos

    whamo, Feb 24, 2008 ... 2 3 4
    Replies:
    76
    Views:
    17,177
    cray1801
    Oct 2, 2009
  9. mygs462

    Aluminum radiator HELP

    mygs462, Mar 22, 2005 ... 2 3 4
    Replies:
    76
    Views:
    7,583
    xxtremeGS
    Nov 11, 2005
  10. dukec

    Cooling issue

    dukec, Jul 5, 2013 ... 2 3 4
    Replies:
    77
    Views:
    6,055
    TheSilverBuick
    Aug 5, 2013
  11. NeverL8

    455 Stage 2 build has started!

    NeverL8, May 21, 2009 ... 2 3 4
    Replies:
    77
    Views:
    11,610
    LukeN
    Mar 16, 2012
  12. BLT4SPD

    starting up a new engine.....

    BLT4SPD, Nov 14, 2004 ... 2 3 4
    Replies:
    78
    Views:
    3,825
    BLT4SPD
    Dec 28, 2004
  13. 69 stepchild

    Thoughts on 455 oil pressure drop?

    69 stepchild, Jul 14, 2021 ... 2 3 4
    Replies:
    79
    Views:
    3,106
    69 stepchild
    Oct 12, 2021
  14. OZGS455

    Timing Chain Cover

    OZGS455, Dec 11, 2018 ... 2 3 4
    Replies:
    79
    Views:
    3,802
    OZGS455
    Jan 8, 2019
  15. oldsbuickhybrid

    Fixing Up 1976 Buick Junkyard Engine

    oldsbuickhybrid, Jul 25, 2014 ... 2 3 4
    Replies:
    79
    Views:
    11,791
    oldsbuickhybrid
    Nov 2, 2016
  16. Jim Weise

    BB Exhaust manifold testing revisted

    Jim Weise, Dec 3, 2015 ... 2 3 4
    Replies:
    79
    Views:
    6,914
    Gary Farmer
    Dec 7, 2015
  17. Whitedrifter

    rear end ratio??????

    Whitedrifter, Oct 6, 2012 ... 2 3 4
    Replies:
    79
    Views:
    10,149
    Whitedrifter
    Oct 25, 2012
  18. 462 Chevelle

    im doing it! nitrous

    462 Chevelle, Oct 11, 2011 ... 2 3 4
    Replies:
    79
    Views:
    5,085
    carmantx
    Oct 28, 2011
  19. Briz

    Wix Filter Issues?

    Briz, Apr 23, 2023 ... 3 4 5
    Replies:
    80
    Views:
    4,712
    john.schaefer77
    Jul 11, 2023
  20. drspencer

    71 350 Conv. Resto. Keep matching #'s 350 or Get 455?

    drspencer, Dec 27, 2009 ... 3 4 5
    Replies:
    80
    Views:
    8,606
    300sbb_overkill
    Jul 26, 2017
  21. BOPGMCARS

    8.3 in 1/8 mile with 3.90 gear

    BOPGMCARS, May 15, 2013 ... 3 4 5
    Replies:
    80
    Views:
    7,279
    BOPGMCARS
    Nov 25, 2014
  22. pooods

    Junk Header Gaskets!!! Now, opinions needed.

    pooods, May 15, 2004 ... 3 4 5
    Replies:
    80
    Views:
    9,372
    sean Buick 76
    Apr 24, 2012
  23. Jason Teague

    Anyone running The GSCA Pop Mech cam in thier 455?

    Jason Teague, Nov 18, 2003 ... 3 4 5
    Replies:
    80
    Views:
    5,926
    KELLY SONNABEND
    Nov 22, 2003
  24. VET

    Who has heard the thin-walled cylinder 455 engine is prone to overheating.

    VET, Jul 26, 2023 ... 3 4 5
    Replies:
    81
    Views:
    2,389
    VET
    Oct 11, 2023
  25. 455nglide

    500hp 464

    455nglide, Feb 17, 2016 ... 3 4 5
    Replies:
    81
    Views:
    8,973
    LARRY70GS
    Feb 25, 2016
  26. 68riviera430

    Is this guy trying to rip me off?

    68riviera430, Nov 25, 2008 ... 3 4 5
    Replies:
    81
    Views:
    4,759
    Jim Blackwood
    Dec 10, 2008
  27. stg2NW

    Finishline 464 Stage 2 build

    stg2NW, Jul 23, 2013 ... 3 4 5
    Replies:
    82
    Views:
    22,041
    stagedgs
    Jul 22, 2020
  28. 455 Skylark

    455 HP. question

    455 Skylark, Mar 6, 2013 ... 3 4 5
    Replies:
    82
    Views:
    8,691
    mltdwn12
    May 29, 2013
  29. Joe65SkylarkGS

    Finally got my 65 on the track. Finally.

    Joe65SkylarkGS, Jun 6, 2009 ... 3 4 5
    Replies:
    82
    Views:
    5,164
    Joe65SkylarkGS
    Jun 27, 2009
  30. 427camaro

    Update of Camaro

    427camaro, Mar 7, 2003 ... 3 4 5
    Replies:
    82
    Views:
    6,856
    dennis6rs91
    Feb 13, 2004
  31. matt68gs400

    Well this sucks

    matt68gs400, Aug 17, 2019 ... 3 4 5
    Replies:
    84
    Views:
    4,640
    matt68gs400
    Aug 28, 2019
  32. babyblue 69

    Finally got it to the track

    babyblue 69, Dec 3, 2016 ... 3 4 5
    Replies:
    85
    Views:
    8,561
    babyblue 69
    Aug 11, 2017
  33. sootie007

    Motors in my 65 LArk.

    sootie007, Jun 9, 2007 ... 3 4 5
    Replies:
    85
    Views:
    7,546
    sootie007
    Nov 19, 2007
  34. wormwood

    Breaking starters?

    wormwood, May 2, 2016 ... 3 4 5
    Replies:
    86
    Views:
    7,135
    wormwood
    Feb 1, 2019
  35. RoadShark

    Best starter for BBB with shorty headers?

    RoadShark, Aug 14, 2016 ... 3 4 5
    Replies:
    86
    Views:
    12,158
    LARRY70GS
    May 21, 2017
  36. pooods

    Did I screw up with this carb?

    pooods, Jan 15, 2007 ... 3 4 5
    Replies:
    86
    Views:
    7,646
    aedmonster
    Jan 27, 2007
  37. JayZee88

    What is needed for a street motor 455 500hp then 600hp?

    JayZee88, Jan 14, 2017 ... 3 4 5
    Replies:
    87
    Views:
    16,543
    Gary Farmer
    Jan 24, 2017
  38. Rob Swenton

    Engine fire up help

    Rob Swenton, Oct 4, 2020 ... 3 4 5
    Replies:
    88
    Views:
    3,506
    Canadian GS 350
    Aug 29, 2021
  39. Warren Jarrett

    1973 455 Stage 1: now 8.5:1 compression, how much higher possible for 2018 Premium fuel?

    Warren Jarrett, Feb 26, 2018 ... 3 4 5
    Replies:
    88
    Views:
    8,206
    8ad-f85
    Mar 11, 2018
  40. Threeft

    455 72-75 Weirdest coolant leak ever

    Threeft, Dec 12, 2016 ... 3 4 5
    Replies:
    89
    Views:
    11,174
    john.schaefer77
    Feb 8, 2017
  41. 87GN_70GS

    Dyno test tomorrow - what will it make?

    87GN_70GS, Nov 19, 2020 ... 3 4 5
    Replies:
    90
    Views:
    5,162
    87GN_70GS
    Dec 1, 2020
  42. buick535

    alum head 10.1 to 1 engine

    buick535, Dec 23, 2003 ... 3 4 5
    Replies:
    90
    Views:
    7,690
    Jim Weise
    Jan 4, 2004
  43. Jim Weise

    The "Sneaky 500 HP" motor

    Jim Weise, Jul 14, 2009 ... 3 4 5
    Replies:
    92
    Views:
    32,232
    Ryans-GSX
    Mar 8, 2024
  44. VET

    Stage 2 - 455

    VET, Feb 3, 2024 ... 3 4 5
    Replies:
    92
    Views:
    2,171
    VET
    Feb 5, 2024
  45. BennyK81
    Locked

    Aluminum Heads with Cast Iron Exhaust Manifolds

    BennyK81, Feb 27, 2017 ... 3 4 5
    Replies:
    92
    Views:
    9,566
    Jim Weise
    Mar 13, 2017
  46. cray1801

    Dyno day, the good and the bad....

    cray1801, Oct 25, 2008 ... 3 4 5
    Replies:
    92
    Views:
    9,506
    Rossco
    Feb 20, 2009
  47. Beamer

    Hard to start after 2 days, fuel drain is possible. Why?

    Beamer, Feb 7, 2017 ... 3 4 5
    Replies:
    93
    Views:
    5,376
    Beamer
    May 12, 2017
  48. buick535
    Locked

    Free porting on 1st set of edelbrock heads

    buick535, Jul 13, 2006 ... 3 4 5
    Replies:
    93
    Views:
    10,031
    76century
    Dec 4, 2006
  49. duke350

    Head swap questions

    duke350, Mar 17, 2020 ... 3 4 5
    Replies:
    94
    Views:
    4,381
    duke350
    Sep 24, 2020
  50. matt68gs400

    455 performance... what next?

    matt68gs400, May 21, 2017 ... 3 4 5
    Replies:
    94
    Views:
    11,241
    johnriv67
    Nov 6, 2019
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