Street/strip 400/430/455

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

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  1. ArcticRyan

    Machine shop trip

    ArcticRyan, Mar 13, 2023
    Replies:
    5
    Views:
    441
    ArcticRyan
    Mar 14, 2023
  2. 87GN_70GS

    How tight should a timing chain be?

    87GN_70GS, Mar 10, 2023 ... 2
    Replies:
    28
    Views:
    3,065
    Mart
    Apr 1, 2023
  3. 12lives

    would you run this lifter?

    12lives, Mar 8, 2023
    Replies:
    7
    Views:
    420
    Mark Demko
    Mar 10, 2023
  4. Electra Sweden

    Water pump questions

    Electra Sweden, Mar 6, 2023 ... 2 3
    Replies:
    54
    Views:
    2,296
    1968_GS400
    Jun 4, 2023
  5. 67skylarkin

    Proform shaft mounted roller rockers, any good?

    67skylarkin, Mar 5, 2023
    Replies:
    15
    Views:
    794
    john.schaefer77
    Mar 9, 2023
  6. knucklebusted

    TA (Maybe Poston) BBB Headers Obstruct Column Shifter?

    knucklebusted, Mar 5, 2023
    Replies:
    14
    Views:
    840
    knucklebusted
    Mar 8, 2023
  7. 67skylarkin

    Does anyone mod their driveshafts?

    67skylarkin, Mar 3, 2023 ... 2
    Replies:
    26
    Views:
    1,136
    12lives
    Mar 6, 2023
  8. Sebambam

    455 Performance upgrades with NO headers

    Sebambam, Feb 28, 2023 ... 2
    Replies:
    29
    Views:
    1,249
    Canadian GS 350
    Mar 2, 2023
  9. 87GN_70GS

    Do I have the right distributor gear for this roller core?

    87GN_70GS, Feb 27, 2023
    Replies:
    5
    Views:
    421
    87GN_70GS
    Mar 3, 2023
  10. 87GN_70GS

    Hydraulic roller cam oiling for the distributor gear

    87GN_70GS, Feb 26, 2023
    Replies:
    5
    Views:
    366
    BrunoD
    Feb 28, 2023
  11. mikegs400

    Brace yourself

    mikegs400, Feb 25, 2023
    Replies:
    4
    Views:
    409
    BrianTrick
    Feb 26, 2023
  12. ArcticRyan

    Buick enthusiasts/ motor heads in AK?

    ArcticRyan, Feb 25, 2023
    Replies:
    9
    Views:
    384
    Thumper (aka greatscat)
    Mar 6, 2023
  13. Jesse Tackett

    Hydraulic lifter preload

    Jesse Tackett, Feb 23, 2023
    Replies:
    2
    Views:
    328
    LARRY70GS
    Feb 23, 2023
  14. avmechanic

    Holley group has Big Block headers on sale.

    avmechanic, Feb 22, 2023
    Replies:
    4
    Views:
    388
    fastest430
    Feb 23, 2023
  15. zazbeam

    Alternator belt won't fit between crank/water pump pulleys

    zazbeam, Feb 22, 2023
    Replies:
    16
    Views:
    582
    Duane
    Mar 16, 2023
  16. 67skylarkin

    Are these heads good to go?

    67skylarkin, Feb 22, 2023
    Replies:
    16
    Views:
    727
    67skylarkin
    Feb 25, 2023
  17. Electra Sweden

    That mean idle sound...

    Electra Sweden, Feb 21, 2023 ... 2 3
    Replies:
    49
    Views:
    3,179
    Storm1
    Apr 8, 2023
  18. 1969briviera

    Valve stem seals 430 ci

    1969briviera, Feb 20, 2023
    Replies:
    7
    Views:
    470
    1969briviera
    Feb 22, 2023
  19. RoseBud68

    A lot of carbon build up exhaust

    RoseBud68, Feb 19, 2023
    Replies:
    3
    Views:
    244
    RoseBud68
    Feb 19, 2023
  20. TommyV

    Intake gasket question

    TommyV, Feb 19, 2023 ... 2
    Replies:
    20
    Views:
    966
    bostoncat68
    Mar 14, 2023
  21. 87GN_70GS

    Rear oil supply line - a different approach

    87GN_70GS, Feb 17, 2023 ... 2
    Replies:
    21
    Views:
    1,009
    87GN_70GS
    Feb 20, 2023
  22. got_tork

    Bronze Valve Guide Replacment

    got_tork, Feb 9, 2023
    Replies:
    13
    Views:
    451
    Mark Demko
    Feb 11, 2023
  23. Da Torquester.

    Good Fitting Engine Diaper

    Da Torquester., Feb 8, 2023
    Replies:
    2
    Views:
    299
    Da Torquester.
    Feb 9, 2023
  24. mikegs400

    Good machine shop

    mikegs400, Feb 5, 2023
    Replies:
    0
    Views:
    224
    mikegs400
    Feb 5, 2023
  25. rkammer

    Change from Lectric Limited to Pertronix conversion?

    rkammer, Feb 5, 2023 ... 2 3
    Replies:
    42
    Views:
    1,606
    Gary Bohannon
    Feb 13, 2023
  26. Ray

    New build

    Ray, Feb 5, 2023
    Replies:
    9
    Views:
    517
    73Stage2
    Feb 8, 2023
  27. 68special455

    Fuel tank insulation

    68special455, Feb 4, 2023
    Replies:
    7
    Views:
    389
    knucklebusted
    Feb 9, 2023
  28. Bigpig455

    Head Porting write up

    Bigpig455, Feb 4, 2023
    Replies:
    5
    Views:
    379
    LARRY70GS
    Feb 5, 2023
  29. Patsusedparts

    455 break in failure

    Patsusedparts, Feb 3, 2023 ... 2 3
    Replies:
    56
    Views:
    3,929
    Patsusedparts
    May 11, 2023
  30. mikegs400

    whats the diff.

    mikegs400, Feb 2, 2023
    Replies:
    12
    Views:
    581
    mikegs400
    Feb 6, 2023
  31. 1970stage1455

    What valve springs to use?

    1970stage1455, Feb 1, 2023
    Replies:
    11
    Views:
    585
    BrunoD
    Feb 2, 2023
  32. Canadian GS 350

    71 and up 455 oil pressure hole size at front of block

    Canadian GS 350, Jan 29, 2023
    Replies:
    8
    Views:
    314
    Canadian GS 350
    Jan 30, 2023
  33. Jim57

    Camshaft

    Jim57, Jan 24, 2023
    Replies:
    11
    Views:
    723
    LARRY70GS
    Jan 24, 2023
  34. Jim57

    Camshafts

    Jim57, Jan 23, 2023
    Replies:
    3
    Views:
    379
    Schurkey
    Jan 24, 2023
  35. Jesse Tackett

    Oil hole in stock 455 connecting rod?

    Jesse Tackett, Jan 20, 2023
    Replies:
    10
    Views:
    566
    Jesse Tackett
    May 6, 2023
  36. jr_

    Cam lobe to lifter alignment

    jr_, Jan 14, 2023
    Replies:
    13
    Views:
    685
    70 GMuscle
    Jan 21, 2023
  37. ROCK N ROLL GSX

    STAGE 2 HOOD SCOOP x 3

    ROCK N ROLL GSX, Jan 14, 2023 ... 2 3
    Replies:
    42
    Views:
    2,782
    ROCK N ROLL GSX
    Nov 17, 2023
  38. Frankie70GS

    Starter Clearances

    Frankie70GS, Jan 13, 2023 ... 2
    Replies:
    20
    Views:
    880
    1973gs
    Feb 9, 2023
  39. srobinr

    Is this engine usable for stockish rebuild

    srobinr, Jan 12, 2023
    Replies:
    16
    Views:
    577
    Mark Demko
    Jan 14, 2023
  40. Carcrazy

    455 casting numbers vs stamped codes

    Carcrazy, Jan 12, 2023
    Replies:
    5
    Views:
    275
    Bigpig455
    Jan 12, 2023
  41. Bogus919

    Head Gasket Option, what should I use?

    Bogus919, Jan 10, 2023
    Replies:
    11
    Views:
    418
    Bogus919
    Jan 11, 2023
  42. 87GN_70GS

    I cannot recommend the BOP one-piece rear main seal

    87GN_70GS, Jan 9, 2023
    Replies:
    16
    Views:
    1,273
    87GN_70GS
    Jan 20, 2023
  43. srb

    Lifter tick 430?

    srb, Jan 9, 2023 ... 2
    Replies:
    29
    Views:
    1,288
    srb
    Aug 29, 2023
  44. 68special455

    Crazy loud fuel pump

    68special455, Jan 7, 2023 ... 2
    Replies:
    21
    Views:
    750
    68special455
    Jan 10, 2023
  45. Jenna Nieves

    Howards Hyd Roller Lifters

    Jenna Nieves, Jan 6, 2023
    Replies:
    4
    Views:
    381
    sean Buick 76
    Jan 7, 2023
  46. fastest430

    Questionable casting

    fastest430, Jan 6, 2023 ... 2
    Replies:
    23
    Views:
    898
    hugger
    Jan 10, 2023
  47. RoseBud68

    GS Xmas gift

    RoseBud68, Jan 1, 2023
    Replies:
    3
    Views:
    346
    RoseBud68
    Jan 10, 2023
  48. ranger

    Best Canned Octane Booster??

    ranger, Dec 31, 2022 ... 2 3
    Replies:
    47
    Views:
    1,937
    Ken Mild
    Jan 9, 2023
  49. The Big Guy

    Need harmonic balancer for Stage 1 455. Suggestions?

    The Big Guy, Dec 28, 2022
    Replies:
    8
    Views:
    424
    steve murray
    Jan 2, 2023
  50. jbeary

    Why is my air cleaner weird?

    jbeary, Dec 28, 2022
    Replies:
    15
    Views:
    607
    Chi-Town67
    Dec 30, 2022
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