Street/strip 400/430/455

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

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  1. BuickRacer69

    Cam Shaft

    BuickRacer69, Apr 1, 2023 ... 2
    Replies:
    21
    Views:
    1,344
    12lives
    May 4, 2023
  2. Frankie70GS

    Spark plugs

    Frankie70GS, Mar 28, 2023 ... 2
    Replies:
    29
    Views:
    1,038
    LARRY70GS
    Mar 10, 2024
  3. skylark7deuce

    Battery Choice

    skylark7deuce, Mar 24, 2023 ... 2
    Replies:
    35
    Views:
    1,139
    LARRY70GS
    Mar 26, 2023
  4. got_tork

    Anyone Running 286-08H From TA?

    got_tork, Mar 22, 2023
    Replies:
    3
    Views:
    388
    got_tork
    Mar 24, 2023
  5. 69 RIV

    69 Riv 430 Won't Stay Running!

    69 RIV, Mar 20, 2023
    Replies:
    6
    Views:
    324
    69 RIV
    Mar 21, 2023
  6. Canadian GS 350

    Piston ring gaps?

    Canadian GS 350, Mar 20, 2023
    Replies:
    6
    Views:
    485
    Canadian GS 350
    Mar 21, 2023
  7. avmechanic

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

    avmechanic, Mar 19, 2023
    Replies:
    13
    Views:
    857
    avmechanic
    Jun 22, 2023
  8. Electra Sweden

    Oil pump shaft radial play

    Electra Sweden, Mar 18, 2023 ... 2
    Replies:
    30
    Views:
    1,205
    BQUICK
    May 2, 2023
  9. Electra Sweden

    Harmonic balancer roundness tolerance

    Electra Sweden, Mar 17, 2023
    Replies:
    4
    Views:
    340
    Electra Sweden
    Mar 18, 2023
  10. mikegs400

    Push rod checker

    mikegs400, Mar 14, 2023
    Replies:
    4
    Views:
    282
    dan zepnick
    Mar 14, 2023
  11. ArcticRyan

    430 rebuild

    ArcticRyan, Mar 14, 2023 ... 4 5 6
    Replies:
    106
    Views:
    4,353
    alaskagn
    Aug 14, 2023
  12. ArcticRyan

    Machine shop trip

    ArcticRyan, Mar 13, 2023
    Replies:
    5
    Views:
    450
    ArcticRyan
    Mar 14, 2023
  13. 87GN_70GS

    How tight should a timing chain be?

    87GN_70GS, Mar 10, 2023 ... 2
    Replies:
    28
    Views:
    3,138
    Mart
    Apr 1, 2023
  14. 12lives

    would you run this lifter?

    12lives, Mar 8, 2023
    Replies:
    7
    Views:
    429
    Mark Demko
    Mar 10, 2023
  15. Electra Sweden

    Water pump questions

    Electra Sweden, Mar 6, 2023 ... 2 3
    Replies:
    54
    Views:
    2,384
    1968_GS400
    Jun 4, 2023
  16. 67skylarkin

    Proform shaft mounted roller rockers, any good?

    67skylarkin, Mar 5, 2023
    Replies:
    15
    Views:
    811
    john.schaefer77
    Mar 9, 2023
  17. knucklebusted

    TA (Maybe Poston) BBB Headers Obstruct Column Shifter?

    knucklebusted, Mar 5, 2023
    Replies:
    14
    Views:
    867
    knucklebusted
    Mar 8, 2023
  18. 67skylarkin

    Does anyone mod their driveshafts?

    67skylarkin, Mar 3, 2023 ... 2
    Replies:
    26
    Views:
    1,181
    12lives
    Mar 6, 2023
  19. Sebambam

    455 Performance upgrades with NO headers

    Sebambam, Feb 28, 2023 ... 2
    Replies:
    29
    Views:
    1,275
    Canadian GS 350
    Mar 2, 2023
  20. 87GN_70GS

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

    87GN_70GS, Feb 27, 2023
    Replies:
    5
    Views:
    431
    87GN_70GS
    Mar 3, 2023
  21. 87GN_70GS

    Hydraulic roller cam oiling for the distributor gear

    87GN_70GS, Feb 26, 2023
    Replies:
    5
    Views:
    375
    BrunoD
    Feb 28, 2023
  22. mikegs400

    Brace yourself

    mikegs400, Feb 25, 2023
    Replies:
    4
    Views:
    415
    BrianTrick
    Feb 26, 2023
  23. ArcticRyan

    Buick enthusiasts/ motor heads in AK?

    ArcticRyan, Feb 25, 2023
    Replies:
    9
    Views:
    391
    Thumper (aka greatscat)
    Mar 6, 2023
  24. Jesse Tackett

    Hydraulic lifter preload

    Jesse Tackett, Feb 23, 2023
    Replies:
    2
    Views:
    336
    LARRY70GS
    Feb 23, 2023
  25. avmechanic

    Holley group has Big Block headers on sale.

    avmechanic, Feb 22, 2023
    Replies:
    4
    Views:
    394
    fastest430
    Feb 23, 2023
  26. zazbeam

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

    zazbeam, Feb 22, 2023
    Replies:
    16
    Views:
    589
    Duane
    Mar 16, 2023
  27. 67skylarkin

    Are these heads good to go?

    67skylarkin, Feb 22, 2023
    Replies:
    16
    Views:
    743
    67skylarkin
    Feb 25, 2023
  28. Electra Sweden

    That mean idle sound...

    Electra Sweden, Feb 21, 2023 ... 2 3
    Replies:
    49
    Views:
    3,204
    Storm1
    Apr 8, 2023
  29. 1969briviera

    Valve stem seals 430 ci

    1969briviera, Feb 20, 2023
    Replies:
    7
    Views:
    476
    1969briviera
    Feb 22, 2023
  30. RoseBud68

    A lot of carbon build up exhaust

    RoseBud68, Feb 19, 2023
    Replies:
    3
    Views:
    255
    RoseBud68
    Feb 19, 2023
  31. TommyV

    Intake gasket question

    TommyV, Feb 19, 2023 ... 2
    Replies:
    20
    Views:
    990
    bostoncat68
    Mar 14, 2023
  32. 87GN_70GS

    Rear oil supply line - a different approach

    87GN_70GS, Feb 17, 2023 ... 2
    Replies:
    21
    Views:
    1,031
    87GN_70GS
    Feb 20, 2023
  33. got_tork

    Bronze Valve Guide Replacment

    got_tork, Feb 9, 2023
    Replies:
    13
    Views:
    457
    Mark Demko
    Feb 11, 2023
  34. Da Torquester.

    Good Fitting Engine Diaper

    Da Torquester., Feb 8, 2023
    Replies:
    2
    Views:
    304
    Da Torquester.
    Feb 9, 2023
  35. mikegs400

    Good machine shop

    mikegs400, Feb 5, 2023
    Replies:
    0
    Views:
    227
    mikegs400
    Feb 5, 2023
  36. rkammer

    Change from Lectric Limited to Pertronix conversion?

    rkammer, Feb 5, 2023 ... 2 3
    Replies:
    42
    Views:
    1,626
    Gary Bohannon
    Feb 13, 2023
  37. Ray

    New build

    Ray, Feb 5, 2023
    Replies:
    9
    Views:
    518
    73Stage2
    Feb 8, 2023
  38. 68special455

    Fuel tank insulation

    68special455, Feb 4, 2023
    Replies:
    7
    Views:
    397
    knucklebusted
    Feb 9, 2023
  39. Bigpig455

    Head Porting write up

    Bigpig455, Feb 4, 2023
    Replies:
    5
    Views:
    384
    LARRY70GS
    Feb 5, 2023
  40. Patsusedparts

    455 break in failure

    Patsusedparts, Feb 3, 2023 ... 2 3
    Replies:
    56
    Views:
    3,977
    Patsusedparts
    May 11, 2023
  41. mikegs400

    whats the diff.

    mikegs400, Feb 2, 2023
    Replies:
    12
    Views:
    586
    mikegs400
    Feb 6, 2023
  42. 1970stage1455

    What valve springs to use?

    1970stage1455, Feb 1, 2023
    Replies:
    11
    Views:
    601
    BrunoD
    Feb 2, 2023
  43. Canadian GS 350

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

    Canadian GS 350, Jan 29, 2023
    Replies:
    8
    Views:
    319
    Canadian GS 350
    Jan 30, 2023
  44. Jim57

    Camshaft

    Jim57, Jan 24, 2023
    Replies:
    11
    Views:
    728
    LARRY70GS
    Jan 24, 2023
  45. Jim57

    Camshafts

    Jim57, Jan 23, 2023
    Replies:
    3
    Views:
    385
    Schurkey
    Jan 24, 2023
  46. Jesse Tackett

    Oil hole in stock 455 connecting rod?

    Jesse Tackett, Jan 20, 2023
    Replies:
    10
    Views:
    577
    Jesse Tackett
    May 6, 2023
  47. jr_

    Cam lobe to lifter alignment

    jr_, Jan 14, 2023
    Replies:
    13
    Views:
    703
    70 GMuscle
    Jan 21, 2023
  48. ROCK N ROLL GSX

    STAGE 2 HOOD SCOOP x 3

    ROCK N ROLL GSX, Jan 14, 2023 ... 2 3
    Replies:
    42
    Views:
    2,809
    ROCK N ROLL GSX
    Nov 17, 2023
  49. Frankie70GS

    Starter Clearances

    Frankie70GS, Jan 13, 2023 ... 2
    Replies:
    20
    Views:
    897
    1973gs
    Feb 9, 2023
  50. srobinr

    Is this engine usable for stockish rebuild

    srobinr, Jan 12, 2023
    Replies:
    16
    Views:
    590
    Mark Demko
    Jan 14, 2023
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