Street/strip 400/430/455

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

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  1. Canadian GS 350

    455 block year id

    Canadian GS 350, Jun 13, 2023
    Replies:
    13
    Views:
    528
    Canadian GS 350
    Jul 10, 2023
  2. moguy79

    455 finally on the dyno!

    moguy79, Jul 6, 2023
    Replies:
    17
    Views:
    889
    nickwhite
    Jul 8, 2023
  3. StKing

    Valve Spring Broke at the end of Power Tour - Need to get it home, what are my options?

    StKing, Jun 18, 2023
    Replies:
    18
    Views:
    790
    436'd Skylark
    Jul 7, 2023
  4. DJJISA

    1968 430 will not start without spray of ether

    DJJISA, Jul 4, 2023
    Replies:
    8
    Views:
    286
    Stevem
    Jul 5, 2023
  5. 87GN_70GS

    Setting roller cam end play - in a bind

    87GN_70GS, Jun 26, 2023
    Replies:
    18
    Views:
    655
    Mark Demko
    Jun 30, 2023
  6. accelr8

    Harmonic Balancer Issue?

    accelr8, Jun 25, 2023
    Replies:
    12
    Views:
    656
    Schurkey
    Jun 28, 2023
  7. accelr8

    How to account for lash when calculating DCR

    accelr8, Jun 28, 2023
    Replies:
    2
    Views:
    235
    accelr8
    Jun 28, 2023
  8. thebuick

    mini starter

    thebuick, Sep 10, 2019 ... 2 3
    Replies:
    49
    Views:
    5,607
    1968_GS400
    Jun 28, 2023
  9. accelr8

    Coolant System Pressurized When Cold

    accelr8, Sep 15, 2022 ... 2 3
    Replies:
    52
    Views:
    2,779
    accelr8
    Jun 28, 2023
  10. Electra Sweden

    Acceptable oil pressure buildup delay

    Electra Sweden, Jun 25, 2023
    Replies:
    5
    Views:
    335
    CJay
    Jun 26, 2023
  11. accelr8

    Questions on Reusing Cam and Lifters

    accelr8, May 5, 2023
    Replies:
    9
    Views:
    489
    knucklebusted
    Jun 25, 2023
  12. dengru94

    Best header/exhaust combo for a 455?

    dengru94, Jun 16, 2023 ... 2
    Replies:
    20
    Views:
    917
    DaWildcat
    Jun 25, 2023
  13. Bigpig455

    Plug Insulator Readings

    Bigpig455, Jun 22, 2023
    Replies:
    2
    Views:
    202
    Bigpig455
    Jun 22, 2023
  14. avmechanic

    Best fitting big block headers for 64'-67' Skylarks?

    avmechanic, Mar 19, 2023
    Replies:
    13
    Views:
    821
    avmechanic
    Jun 22, 2023
  15. Canadian GS 350

    Coldcase radiator

    Canadian GS 350, Feb 10, 2021
    Replies:
    14
    Views:
    1,148
    Bigpig455
    Jun 12, 2023
  16. dengru94

    What cam is this?

    dengru94, Jun 10, 2023
    Replies:
    13
    Views:
    608
    Briz
    Jun 12, 2023
  17. srb

    Cooling issue on idle; waterpump(?) combo(?)

    srb, Oct 30, 2022 ... 2 3 4
    Replies:
    65
    Views:
    2,482
    srb
    Jun 12, 2023
  18. Ray carlson jr

    MT drag radial r!!!

    Ray carlson jr, Jun 10, 2023
    Replies:
    6
    Views:
    388
    Gary Bohannon
    Jun 11, 2023
  19. Quick Buick

    RobbMC fuel pump?

    Quick Buick, May 20, 2023 ... 2
    Replies:
    23
    Views:
    1,032
    73 Stage-1
    Jun 10, 2023
  20. got_tork

    Cam Card Sticky

    got_tork, Jun 4, 2023
    Replies:
    7
    Views:
    356
    breakinbuick11
    Jun 7, 2023
  21. Frankie70GS

    Timing cover issue

    Frankie70GS, Jun 6, 2023
    Replies:
    5
    Views:
    236
    Frankie70GS
    Jun 6, 2023
  22. VET

    Can anybody identify this piston and it's compression ratio

    VET, May 29, 2023
    Replies:
    14
    Views:
    774
    VET
    Jun 5, 2023
  23. TommyV

    How to tell what waterpump for 455?

    TommyV, Jun 4, 2023
    Replies:
    3
    Views:
    280
    LARRY70GS
    Jun 5, 2023
  24. Pro69GS400

    MR Gasket Head Gaskets for 400-430 engines under $11 Holley.com

    Pro69GS400, May 25, 2023
    Replies:
    15
    Views:
    687
    BUQUICK
    Jun 5, 2023
  25. Electra Sweden

    Water pump questions

    Electra Sweden, Mar 6, 2023 ... 2 3
    Replies:
    54
    Views:
    2,181
    1968_GS400
    Jun 4, 2023
  26. RWC

    Complete loss of power

    RWC, Apr 16, 2023 ... 2
    Replies:
    29
    Views:
    1,007
    RWC
    Jun 4, 2023
  27. rjay

    cam card for the TA 290 94H

    rjay, Jun 3, 2023
    Replies:
    3
    Views:
    190
    ES72SKYLARK
    Jun 4, 2023
  28. Ray carlson jr

    300’ drags (275vs295)

    Ray carlson jr, May 31, 2023
    Replies:
    12
    Views:
    386
    No Lift
    Jun 4, 2023
  29. breakinbuick11

    Running a filled block on the street

    breakinbuick11, May 29, 2023 ... 2
    Replies:
    24
    Views:
    971
    No Lift
    Jun 4, 2023
  30. oldschool85

    Gessler or any Iron Head Flow Data

    oldschool85, Jun 2, 2023
    Replies:
    3
    Views:
    445
    Stevem
    Jun 3, 2023
  31. STREETFIGHTER50

    Can I see your electric fan set ups?

    STREETFIGHTER50, Apr 27, 2023 ... 2 3
    Replies:
    42
    Views:
    1,663
    Bluzilla
    May 31, 2023
  32. 50ramzee

    455 Buick fuel issues

    50ramzee, May 30, 2023
    Replies:
    8
    Views:
    293
    50ramzee
    May 30, 2023
  33. 87GN_70GS

    Test of dedicated timing chain and distributor gear oiler - video

    87GN_70GS, May 29, 2023
    Replies:
    3
    Views:
    219
    Mark Demko
    May 30, 2023
  34. skylark7deuce

    Help Needed

    skylark7deuce, May 28, 2023
    Replies:
    11
    Views:
    329
    skylark7deuce
    May 29, 2023
  35. 12lives

    starter bolts?

    12lives, Oct 9, 2017
    Replies:
    12
    Views:
    1,864
    12lives
    May 28, 2023
  36. VET

    What makes the 1970 Buick 455 make so much Torque?

    VET, May 24, 2023 ... 2
    Replies:
    23
    Views:
    1,951
    VET
    May 28, 2023
  37. stickman61

    Cam bearing tool

    stickman61, May 27, 2023
    Replies:
    9
    Views:
    303
    Jim Weise
    May 28, 2023
  38. dengru94

    455 build

    dengru94, May 26, 2023 ... 2
    Replies:
    21
    Views:
    750
    LARRY70GS
    May 28, 2023
  39. dengru94

    Alternative camshaft to Hughes Whiplash cam for a 462?

    dengru94, May 24, 2023 ... 2
    Replies:
    37
    Views:
    1,264
    Mark Demko
    May 27, 2023
  40. Brian Hafliger

    455 Buick on the dyno today

    Brian Hafliger, May 5, 2023
    Replies:
    12
    Views:
    857
    LARRY70GS
    May 27, 2023
  41. oldschool85

    Post your 12 /13 Second 455 combos!

    oldschool85, Sep 25, 2016 ... 2 3 4
    Replies:
    60
    Views:
    8,020
    70 GMuscle
    May 26, 2023
  42. dengru94

    Closed chamber ported iron heads on a 455?

    dengru94, May 26, 2023
    Replies:
    8
    Views:
    338
    73Stage2
    May 26, 2023
  43. Pro69GS400

    Cam Card Needed for KenneBell MK-2H

    Pro69GS400, May 9, 2023
    Replies:
    13
    Views:
    678
    Pro69GS400
    May 25, 2023
  44. Bad Buick

    Intake manifold oil splash shield?

    Bad Buick, May 25, 2023
    Replies:
    4
    Views:
    268
    LARRY70GS
    May 25, 2023
  45. Brent

    Jahns Pistons Questions

    Brent, Jun 30, 2022 ... 2 3
    Replies:
    47
    Views:
    2,477
    Scrappy
    May 24, 2023
  46. Bigpig455

    CC's per thousanth of head cut

    Bigpig455, May 24, 2023
    Replies:
    2
    Views:
    177
    436'd Skylark
    May 24, 2023
  47. Ray carlson jr

    15x10 6”backspace?

    Ray carlson jr, May 24, 2023
    Replies:
    0
    Views:
    166
    Ray carlson jr
    May 24, 2023
  48. Canadian GS 350

    Pros and cons of TA Stage 1SE heads versus Stage 2SE

    Canadian GS 350, Mar 30, 2021 ... 2
    Replies:
    26
    Views:
    2,520
    70 GMuscle
    May 24, 2023
  49. Jeremy Zepnick

    Jeremy's 455 motor build thread

    Jeremy Zepnick, Mar 30, 2022 ... 6 7 8
    Replies:
    154
    Views:
    8,808
    Jeremy Zepnick
    May 22, 2023
  50. gsgtx

    autolite plugs

    gsgtx, May 19, 2023
    Replies:
    0
    Views:
    214
    gsgtx
    May 19, 2023
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