Street/strip 400/430/455

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

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  1. 87GN_70GS

    Oil pan gaskets

    87GN_70GS, Jul 24, 2023
    Replies:
    3
    Views:
    269
    Tom Righter
    Jul 24, 2023
  2. Guido

    Oil pressure issue 1967 430

    Guido, Jul 22, 2023 ... 2
    Replies:
    21
    Views:
    697
    Max Damage
    Jul 24, 2023
  3. StKing

    Correct head gaskets?

    StKing, Jul 21, 2023
    Replies:
    4
    Views:
    299
    Mark Demko
    Jul 26, 2023
  4. 05snopro440

    455 - No oil at driver's side head

    05snopro440, Jul 21, 2023
    Replies:
    14
    Views:
    790
    05snopro440
    Jul 25, 2023
  5. accelr8

    Does my cylinder have a crack?

    accelr8, Jul 18, 2023 ... 2
    Replies:
    23
    Views:
    824
    Jim Weise
    Jul 26, 2023
  6. Luxus

    Rear main seal leak

    Luxus, Jul 18, 2023
    Replies:
    12
    Views:
    667
    Jim Weise
    Jul 30, 2023
  7. Canadian GS 350

    Anyone using studs for their stage 2 headers on TA SE heads?

    Canadian GS 350, Jul 14, 2023
    Replies:
    4
    Views:
    297
    TrunkMonkey
    Jul 15, 2023
  8. StfSocal

    Timing cover question

    StfSocal, Jul 13, 2023 ... 2
    Replies:
    22
    Views:
    783
    Mark Demko
    Jul 14, 2023
  9. Edward Crosson

    Starter nose cone breaking

    Edward Crosson, Jul 10, 2023 ... 2
    Replies:
    32
    Views:
    922
    BUICKRAT
    Aug 5, 2023
  10. Jerry Burzinski

    Valve Train Noise

    Jerry Burzinski, Jul 9, 2023
    Replies:
    4
    Views:
    379
    Jerry Burzinski
    Jul 16, 2023
  11. rkammer

    Some troubleshooting ideas please.

    rkammer, Jul 8, 2023 ... 3 4 5
    Replies:
    95
    Views:
    2,942
    hwprouty
    Jul 17, 2023
  12. moguy79

    455 finally on the dyno!

    moguy79, Jul 6, 2023
    Replies:
    17
    Views:
    893
    nickwhite
    Jul 8, 2023
  13. DJJISA

    1968 430 will not start without spray of ether

    DJJISA, Jul 4, 2023
    Replies:
    8
    Views:
    291
    Stevem
    Jul 5, 2023
  14. accelr8

    How to account for lash when calculating DCR

    accelr8, Jun 28, 2023
    Replies:
    2
    Views:
    237
    accelr8
    Jun 28, 2023
  15. accelr8

    Rear Main Seal Install Question

    accelr8, Jun 26, 2023 ... 2 3
    Replies:
    57
    Views:
    1,704
    Tom Righter
    Jul 29, 2023
  16. 87GN_70GS

    Setting roller cam end play - in a bind

    87GN_70GS, Jun 26, 2023
    Replies:
    18
    Views:
    670
    Mark Demko
    Jun 30, 2023
  17. accelr8

    Harmonic Balancer Issue?

    accelr8, Jun 25, 2023
    Replies:
    12
    Views:
    666
    Schurkey
    Jun 28, 2023
  18. Electra Sweden

    Acceptable oil pressure buildup delay

    Electra Sweden, Jun 25, 2023
    Replies:
    5
    Views:
    341
    CJay
    Jun 26, 2023
  19. Frankie70GS

    Aluminum Rods

    Frankie70GS, Jun 22, 2023
    Replies:
    14
    Views:
    779
    Frankie70GS
    Jul 11, 2023
  20. Bigpig455

    Plug Insulator Readings

    Bigpig455, Jun 22, 2023
    Replies:
    2
    Views:
    203
    Bigpig455
    Jun 22, 2023
  21. 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:
    795
    436'd Skylark
    Jul 7, 2023
  22. dengru94

    Best header/exhaust combo for a 455?

    dengru94, Jun 16, 2023 ... 2
    Replies:
    20
    Views:
    930
    DaWildcat
    Jun 25, 2023
  23. Canadian GS 350

    455 block year id

    Canadian GS 350, Jun 13, 2023
    Replies:
    13
    Views:
    532
    Canadian GS 350
    Jul 10, 2023
  24. Ray carlson jr

    MT drag radial r!!!

    Ray carlson jr, Jun 10, 2023
    Replies:
    6
    Views:
    392
    Gary Bohannon
    Jun 11, 2023
  25. dengru94

    What cam is this?

    dengru94, Jun 10, 2023
    Replies:
    13
    Views:
    614
    Briz
    Jun 12, 2023
  26. RoseBud68

    Funny deposit in my radiator

    RoseBud68, Jun 6, 2023 ... 2
    Replies:
    23
    Views:
    865
    Mark Demko
    Jul 25, 2023
  27. Frankie70GS

    Timing cover issue

    Frankie70GS, Jun 6, 2023
    Replies:
    5
    Views:
    239
    Frankie70GS
    Jun 6, 2023
  28. got_tork

    Cam Card Sticky

    got_tork, Jun 4, 2023
    Replies:
    7
    Views:
    364
    breakinbuick11
    Jun 7, 2023
  29. TommyV

    How to tell what waterpump for 455?

    TommyV, Jun 4, 2023
    Replies:
    3
    Views:
    283
    LARRY70GS
    Jun 5, 2023
  30. rjay

    cam card for the TA 290 94H

    rjay, Jun 3, 2023
    Replies:
    3
    Views:
    194
    ES72SKYLARK
    Jun 4, 2023
  31. oldschool85

    Gessler or any Iron Head Flow Data

    oldschool85, Jun 2, 2023
    Replies:
    3
    Views:
    448
    Stevem
    Jun 3, 2023
  32. Ray carlson jr

    300’ drags (275vs295)

    Ray carlson jr, May 31, 2023
    Replies:
    12
    Views:
    389
    No Lift
    Jun 4, 2023
  33. 50ramzee

    455 Buick fuel issues

    50ramzee, May 30, 2023
    Replies:
    8
    Views:
    300
    50ramzee
    May 30, 2023
  34. 87GN_70GS

    Test of dedicated timing chain and distributor gear oiler - video

    87GN_70GS, May 29, 2023
    Replies:
    3
    Views:
    222
    Mark Demko
    May 30, 2023
  35. breakinbuick11

    Running a filled block on the street

    breakinbuick11, May 29, 2023 ... 2
    Replies:
    24
    Views:
    991
    No Lift
    Jun 4, 2023
  36. VET

    Can anybody identify this piston and it's compression ratio

    VET, May 29, 2023
    Replies:
    14
    Views:
    780
    VET
    Jun 5, 2023
  37. skylark7deuce

    Help Needed

    skylark7deuce, May 28, 2023
    Replies:
    11
    Views:
    339
    skylark7deuce
    May 29, 2023
  38. stickman61

    Cam bearing tool

    stickman61, May 27, 2023
    Replies:
    9
    Views:
    316
    Jim Weise
    May 28, 2023
  39. dengru94

    455 build

    dengru94, May 26, 2023 ... 2
    Replies:
    21
    Views:
    765
    LARRY70GS
    May 28, 2023
  40. dengru94

    Closed chamber ported iron heads on a 455?

    dengru94, May 26, 2023
    Replies:
    8
    Views:
    339
    73Stage2
    May 26, 2023
  41. Pro69GS400

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

    Pro69GS400, May 25, 2023
    Replies:
    15
    Views:
    705
    BUQUICK
    Jun 5, 2023
  42. Bad Buick

    Intake manifold oil splash shield?

    Bad Buick, May 25, 2023
    Replies:
    4
    Views:
    271
    LARRY70GS
    May 25, 2023
  43. VET

    What makes the 1970 Buick 455 make so much Torque?

    VET, May 24, 2023 ... 2
    Replies:
    23
    Views:
    1,993
    VET
    May 28, 2023
  44. Bigpig455

    CC's per thousanth of head cut

    Bigpig455, May 24, 2023
    Replies:
    2
    Views:
    180
    436'd Skylark
    May 24, 2023
  45. dengru94

    Alternative camshaft to Hughes Whiplash cam for a 462?

    dengru94, May 24, 2023 ... 2
    Replies:
    37
    Views:
    1,286
    Mark Demko
    May 27, 2023
  46. Ray carlson jr

    15x10 6”backspace?

    Ray carlson jr, May 24, 2023
    Replies:
    0
    Views:
    168
    Ray carlson jr
    May 24, 2023
  47. Atbb

    Exhaust question - offset or central position?

    Atbb, May 24, 2023 ... 2
    Replies:
    25
    Views:
    1,018
    BillA
    Aug 27, 2023
  48. Quick Buick

    RobbMC fuel pump?

    Quick Buick, May 20, 2023 ... 2
    Replies:
    23
    Views:
    1,049
    73 Stage-1
    Jun 10, 2023
  49. gsgtx

    autolite plugs

    gsgtx, May 19, 2023
    Replies:
    0
    Views:
    216
    gsgtx
    May 19, 2023
  50. FJM568

    Which NGK plugs and gap for 71 455

    FJM568, May 15, 2023
    Replies:
    19
    Views:
    599
    Mark Demko
    May 18, 2023
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