Street/strip 400/430/455

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

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  1. LARRY70GS
    Sticky

    Post your Cam Cards in this thread for reference by other members

    LARRY70GS, Jun 5, 2023 ... 2 3
    Replies:
    47
    Views:
    1,541
    sore loser
    Sep 2, 2023
  2. bignastyGS
    Sticky

    Let's discuss cam bearings

    bignastyGS, Dec 18, 2021 ... 2 3
    Replies:
    45
    Views:
    3,080
    TimR
    Aug 28, 2022
  3. Jim Weise
    Sticky

    Camshaft degreeing 101

    Jim Weise, Jan 16, 2011 ... 2 3
    Replies:
    47
    Views:
    40,837
    SageSenior
    May 28, 2022
  4. Jim Weise
    Sticky

    400/430/455 Block ID, Prep and Oiling mods

    Jim Weise, Oct 8, 2010 ... 3 4 5
    Replies:
    96
    Views:
    94,062
    StfSocal
    May 2, 2022
  5. Quick Buick
    Sticky

    ORIGINAL SAE CONFERENCE BB HANDOUT BOOKLET- SCAN BY JIM WEISE with Pics

    Quick Buick, Nov 28, 2019
    Replies:
    4
    Views:
    1,570
    schwemf
    Dec 20, 2020
  6. Jim Weise
    Sticky

    BOP 455 Rear seal Install- Step by Step

    Jim Weise, Sep 3, 2015
    Replies:
    19
    Views:
    15,104
    Buick
    Jul 28, 2020
  7. Quick Buick
    Sticky

    400/430/455 Block ID, Prep and Oiling mods With Pictures

    Quick Buick, Nov 27, 2019
    Replies:
    4
    Views:
    2,590
    Inglburt
    May 22, 2020
  8. Quick Buick
    Sticky

    BOP 455 REAR SEAL INSTALL- STEP BY STEP BY JIM WEISE with Pics

    Quick Buick, Nov 28, 2019
    Replies:
    8
    Views:
    1,769
    LARRY70GS
    Feb 11, 2020
  9. Quick Buick
    Sticky

    Understanding Core Shift in the 455 block- why sonic checking is so important. With Pics

    Quick Buick, Nov 28, 2019
    Replies:
    1
    Views:
    1,228
    The Big Guy
    Nov 28, 2019
  10. Jim Weise
    Sticky

    Understanding Core Shift in the 455 block- why sonic checking is so important.

    Jim Weise, Feb 14, 2009 ... 2 3
    Replies:
    58
    Views:
    53,115
    piston1
    Aug 10, 2019
  11. MN GS455
    Sticky

    Blueprint machining videos, B.B. Buick

    MN GS455, Jan 14, 2019 ... 2
    Replies:
    26
    Views:
    3,997
    455 Powered
    Jul 17, 2019
  12. Jim Weise
    Sticky

    Original SAE Conference BB handout booklet- scan

    Jim Weise, Dec 7, 2010 ... 2
    Replies:
    26
    Views:
    23,814
    matt68gs400
    Sep 3, 2017
  13. Jim Weise
    Sticky

    Engine break in prep and video

    Jim Weise, Oct 13, 2010
    Replies:
    12
    Views:
    23,889
    Drachen
    Mar 13, 2016
  14. Canadian GS 350

    Break in oil viscosity

    Canadian GS 350, Sep 26, 2023 at 11:52 AM
    Replies:
    9
    Views:
    158
    Stage 2 iron
    Sep 26, 2023 at 7:14 PM
  15. VET

    Does PCV pull oil and carbon deposits into the intake manifold?

    VET, Sep 25, 2023 at 9:15 PM
    Replies:
    8
    Views:
    203
    VET
    Sep 26, 2023 at 4:13 PM
  16. VET

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

    VET, Jul 26, 2023 ... 2 3
    Replies:
    57
    Views:
    1,012
    VET
    Sep 26, 2023 at 4:02 PM
  17. got_tork

    Stock Connecting Rods

    got_tork, Sep 25, 2023 at 11:19 AM
    Replies:
    17
    Views:
    314
    hugger
    Sep 26, 2023 at 3:13 PM
  18. VET

    How important is it to have a good .040 squish/quench?

    VET, Sep 11, 2023 ... 2 3 4
    Replies:
    73
    Views:
    1,537
    Mark Demko
    Sep 26, 2023 at 2:28 PM
  19. Frankie70GS

    Header gasket port matching

    Frankie70GS, Sep 20, 2023 ... 2
    Replies:
    24
    Views:
    513
    hugger
    Sep 26, 2023 at 10:30 AM
  20. 12lives

    AC Bracket Trivia

    12lives, Sep 24, 2023 at 2:40 PM
    Replies:
    6
    Views:
    142
    Nearing
    Sep 25, 2023 at 6:39 PM
  21. Stage 2 iron

    Round 2 iron head stage 2

    Stage 2 iron, Jun 16, 2023 ... 6 7 8
    Replies:
    147
    Views:
    5,188
    DaWildcat
    Sep 24, 2023 at 1:52 PM
  22. VET

    What is normal water temperature for a 455 engine with A/C engaged?

    VET, Aug 29, 2023 ... 2 3
    Replies:
    53
    Views:
    956
    VET
    Sep 23, 2023 at 2:25 AM
  23. Canadian GS 350

    SPX intake - port to match gasket or as cast……hp difference ?

    Canadian GS 350, Sep 20, 2023
    Replies:
    10
    Views:
    355
    Bens99gtp
    Sep 21, 2023 at 4:13 PM
  24. Canadian GS 350

    470 Stroker build

    Canadian GS 350, Jul 24, 2022 ... 2 3
    Replies:
    47
    Views:
    2,494
    Canadian GS 350
    Sep 21, 2023 at 3:09 PM
  25. robert v

    Cast iron cylinder head question (is damage repairable?)

    robert v, Sep 18, 2023
    Replies:
    7
    Views:
    355
    Stevem
    Sep 20, 2023
  26. mkingan1212

    need help on Edelbrock intake mounts/ports

    mkingan1212, Mar 19, 2017 ... 2
    Replies:
    23
    Views:
    2,061
    Fred vandenHeuvel
    Sep 19, 2023
  27. 1969briviera

    Buick's head design

    1969briviera, Sep 13, 2023 ... 2 3 4
    Replies:
    67
    Views:
    1,248
    PGSS
    Sep 18, 2023
  28. Jeremy Zepnick

    Lost dang it!

    Jeremy Zepnick, Sep 16, 2023
    Replies:
    5
    Views:
    247
    2manybuicks
    Sep 17, 2023
  29. WQ59B

    Header heat vs. PS

    WQ59B, Sep 15, 2023
    Replies:
    2
    Views:
    117
    12lives
    Sep 15, 2023
  30. knucklebusted

    Magnets on Oil Filters Anyone?

    knucklebusted, May 7, 2023 ... 2
    Replies:
    24
    Views:
    708
    Guy Parquette
    Sep 13, 2023
  31. APVGS

    430 Head Porting

    APVGS, Aug 10, 2023
    Replies:
    14
    Views:
    435
    Stevem
    Sep 12, 2023
  32. Jerrit72Riv

    Hydraulic flat tappet lifters

    Jerrit72Riv, Oct 12, 2021 ... 2
    Replies:
    25
    Views:
    1,664
    mikegs400
    Sep 11, 2023
  33. Stage 2 iron

    Switching to a Holley 850

    Stage 2 iron, Sep 6, 2023 ... 2
    Replies:
    24
    Views:
    591
    BrianTrick
    Sep 9, 2023
  34. Big Twist

    455 overheated 1975 Lesabre

    Big Twist, Aug 18, 2023 ... 2
    Replies:
    27
    Views:
    602
    CanadaCat
    Sep 8, 2023
  35. Houndogforever

    Starter issues on 455.

    Houndogforever, Sep 6, 2023
    Replies:
    9
    Views:
    198
    BUICKRAT
    Sep 7, 2023
  36. theone61636

    Engine Carnage

    theone61636, Sep 4, 2023 ... 2
    Replies:
    23
    Views:
    789
    hugger
    Sep 7, 2023
  37. knucklebusted

    Left Me on the Side of the Road! Now What?

    knucklebusted, Aug 1, 2023 ... 2 3 4
    Replies:
    61
    Views:
    1,780
    knucklebusted
    Sep 3, 2023
  38. Utah455

    Spark plug wire recommendation for 455

    Utah455, Aug 29, 2023 ... 2
    Replies:
    29
    Views:
    624
    Clarkie
    Sep 2, 2023
  39. srb

    Lifter tick 430?

    srb, Jan 9, 2023 ... 2
    Replies:
    29
    Views:
    1,055
    srb
    Aug 29, 2023
  40. got_tork

    430 Rocker Arms

    got_tork, Aug 28, 2023
    Replies:
    2
    Views:
    143
    DaWildcat
    Aug 28, 2023
  41. 69_GS_400

    400 cooling and oil pressure issue

    69_GS_400, Aug 10, 2017 ... 8 9 10
    Replies:
    180
    Views:
    5,636
    69_GS_400
    Aug 27, 2023
  42. Atbb

    Exhaust question - offset or central position?

    Atbb, May 24, 2023 ... 2
    Replies:
    25
    Views:
    819
    BillA
    Aug 27, 2023
  43. Canadian GS 350

    Cam suggestions

    Canadian GS 350, Aug 18, 2023
    Replies:
    4
    Views:
    271
    Canadian GS 350
    Aug 26, 2023
  44. George D.

    Head bolt suggestions? Shanked? Call ARP?

    George D., Aug 22, 2023
    Replies:
    15
    Views:
    290
    Schurkey
    Aug 23, 2023
  45. 68Buick-Jim

    Main bearing cap bolt torque spec.

    68Buick-Jim, Aug 18, 2023
    Replies:
    11
    Views:
    247
    rjay
    Aug 22, 2023
  46. RellyRell3605

    Won't stay running

    RellyRell3605, Aug 20, 2023
    Replies:
    16
    Views:
    308
    LARRY70GS
    Aug 22, 2023
  47. Jeremy Zepnick

    Hoosier DR2's

    Jeremy Zepnick, Aug 6, 2023
    Replies:
    13
    Views:
    432
    hugger
    Aug 21, 2023
  48. 69WILD

    Slop in original timing chain on 78k 430

    69WILD, Aug 5, 2023 ... 3 4 5
    Replies:
    93
    Views:
    1,428
    69WILD
    Aug 19, 2023
  49. 1969briviera

    Oil consumption 430ci

    1969briviera, Aug 10, 2023 ... 2 3 4
    Replies:
    72
    Views:
    1,445
    1969briviera
    Aug 18, 2023
  50. VET

    What is the difference between Manifold & Ported Vacuum Advance? Which one should I use?

    VET, Aug 16, 2023
    Replies:
    14
    Views:
    321
    VET
    Aug 17, 2023
  51. Canadian GS 350

    Piston brand ?

    Canadian GS 350, Aug 15, 2023
    Replies:
    9
    Views:
    357
    Canadian GS 350
    Aug 16, 2023
  52. Canadian GS 350

    Cam id?

    Canadian GS 350, Aug 15, 2023
    Replies:
    3
    Views:
    132
    DaWildcat
    Aug 15, 2023
  53. hvramesq

    Please help Identify

    hvramesq, Aug 14, 2023
    Replies:
    3
    Views:
    152
    Matt Knutson
    Aug 14, 2023
  54. ArcticRyan

    430 rebuild

    ArcticRyan, Mar 14, 2023 ... 4 5 6
    Replies:
    106
    Views:
    3,639
    alaskagn
    Aug 14, 2023
  55. hvramesq

    1971 stage 1 head ID

    hvramesq, Aug 11, 2023
    Replies:
    3
    Views:
    175
    thepartsman
    Aug 12, 2023
  56. mattd3933

    Building a project 71 GS. looking for Distributor advice

    mattd3933, Aug 7, 2023
    Replies:
    12
    Views:
    314
    Canadian GS 350
    Aug 9, 2023
  57. rkammer

    Pertronix interface with tachometers

    rkammer, Jul 29, 2023
    Replies:
    4
    Views:
    240
    Bigpig455
    Aug 7, 2023
  58. VET

    Upgrade a Base 455 to a Stage 1 Engine

    VET, Aug 1, 2023 ... 2 3 4
    Replies:
    68
    Views:
    1,181
    TrunkMonkey
    Aug 7, 2023
  59. Edward Crosson

    Starter nose cone breaking

    Edward Crosson, Jul 10, 2023 ... 2
    Replies:
    32
    Views:
    680
    BUICKRAT
    Aug 5, 2023
  60. George D.

    Intake manifold gasket/ valley pan- which one?

    George D., Aug 4, 2023
    Replies:
    2
    Views:
    191
    hugger
    Aug 4, 2023
  61. TommyV

    With TA performance heads probably not available for a long time..

    TommyV, May 11, 2023 ... 2
    Replies:
    20
    Views:
    1,568
    Freakazoid
    Aug 4, 2023
  62. jr_

    470 assembly started

    jr_, Nov 3, 2022 ... 3 4 5
    Replies:
    96
    Views:
    4,256
    jr_
    Aug 4, 2023
  63. 70staged

    3" exhaust

    70staged, Aug 2, 2023
    Replies:
    10
    Views:
    427
    BrianTrick
    Aug 4, 2023
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