Street/strip 400/430/455

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

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  1. Clark Porter

    Oil pickup support bracket?

    Clark Porter, Apr 14, 2024
    Replies:
    7
    Views:
    437
    1973gs
    Apr 15, 2024
  2. Dj stoner

    455 Intake

    Dj stoner, Apr 15, 2024
    Replies:
    3
    Views:
    370
    hugger
    Apr 15, 2024
  3. midnightcruiser

    Liftergallery clearance

    midnightcruiser, Apr 16, 2024
    Replies:
    19
    Views:
    743
    alvareracing
    Apr 23, 2024
  4. Luxus

    Fuel pump bolts.

    Luxus, Apr 17, 2024
    Replies:
    7
    Views:
    374
    Luxus
    Apr 17, 2024
  5. accelr8

    Plate Welded to Bottom of SP1 Intake - How Beneficial is it?

    accelr8, Apr 19, 2024
    Replies:
    17
    Views:
    603
    Fox's Den
    Apr 20, 2024
  6. Bdogatx

    Found one!

    Bdogatx, Apr 19, 2024
    Replies:
    6
    Views:
    763
    alvareracing
    Apr 29, 2024
  7. MRJDBUICK

    400/430/455 Exhaust Bolt Hole Drill Template

    MRJDBUICK, Apr 21, 2024
    Replies:
    10
    Views:
    544
    MRJDBUICK
    Apr 24, 2024
  8. Marcus brevly

    Best antifreeze for 455 with aluminum heads and intake

    Marcus brevly, Apr 25, 2024 ... 2 3
    Replies:
    49
    Views:
    1,336
    1973gs
    Apr 30, 2024
  9. BrianTrick

    Pretty good explanation

    BrianTrick, Apr 25, 2024 ... 2 3
    Replies:
    42
    Views:
    1,231
    Mark Demko
    May 3, 2024
  10. Jeremy Zepnick

    Winner!

    Jeremy Zepnick, Apr 27, 2024
    Replies:
    15
    Views:
    441
    Ken Mild
    May 1, 2024
  11. Freakazoid

    Roller cam and play.

    Freakazoid, Apr 29, 2024
    Replies:
    2
    Views:
    293
    Freakazoid
    Apr 29, 2024
  12. accelr8

    Checking piston-to-valve clearance with a hydraulic roller cam???

    accelr8, Apr 30, 2024
    Replies:
    12
    Views:
    414
    Bigpig455
    May 5, 2024
  13. Bigpig455

    462 Rebuild

    Bigpig455, May 3, 2024 ... 2
    Replies:
    25
    Views:
    773
    Bigpig455
    May 13, 2024 at 10:19 AM
  14. Note 1970

    Se t/a alum heads

    Note 1970, May 3, 2024
    Replies:
    10
    Views:
    505
    standup 69
    May 4, 2024
  15. accelr8

    Do I need a bronze cam thrust washer with my hydraulic roller cam?

    accelr8, May 7, 2024 ... 2
    Replies:
    29
    Views:
    644
    accelr8
    May 14, 2024 at 7:31 PM
  16. C.Rob

    Gasket sealer

    C.Rob, May 8, 2024
    Replies:
    2
    Views:
    103
    hugger
    May 8, 2024
  17. Stage 2 iron

    MSD 8517 distributor and factory ram air air breather

    Stage 2 iron, May 11, 2024
    Replies:
    16
    Views:
    269
    Stage 2 iron
    May 13, 2024 at 7:04 PM
  18. GSXER

    What cam is this

    GSXER, May 13, 2024 at 10:29 PM
    Replies:
    1
    Views:
    137
    hugger
    May 14, 2024 at 5:07 AM
  19. hugger

    Any dyno test of stock intake vs SP1

    hugger, May 15, 2024 at 10:24 PM
    Replies:
    9
    Views:
    273
    436'd Skylark
    May 16, 2024 at 2:09 PM
  20. Al T

    Issue With Newly Installed Stage 1 455 In My '69 GS 400

    Al T, May 16, 2024 at 12:19 PM
    Replies:
    9
    Views:
    270
    12lives
    May 17, 2024 at 12:51 PM
  21. Jeremy Zepnick

    GS Nationals

    Jeremy Zepnick, May 17, 2024 at 6:38 AM
    Replies:
    2
    Views:
    182
    Steve Reynolds
    May 17, 2024 at 7:59 AM
  22. midnightcruiser

    Hard Blok

    midnightcruiser, May 17, 2024 at 1:28 PM
    Replies:
    4
    Views:
    144
    72 skylark custom
    May 17, 2024 at 6:59 PM
  23. Jeremy Zepnick

    I did it! GS nationals

    Jeremy Zepnick, May 18, 2024 at 8:01 PM
    Replies:
    10
    Views:
    210
    Brett Slater
    May 19, 2024 at 1:10 AM
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