Engine Performance + Maintenance

If it's under the hood, its in here.

  1. 96+ Vortec Performance + Computer Swaps

    If you want to do the 0411 PCM swap or have a 1996+ Vortec motor this is your forum!
    640
    Discussions
    7,390
    Messages
    Latest: L31 Spark retard at hi rpm & load NorthernTahoe, Aug 14, 2018 at 4:45 AM

  2. LSX + Carb Swaps

    This section is for info on LSX or carburetor swaps into the OBS trucks.
    341
    Discussions
    4,623
    Messages
    Latest: 6.0 into 2000 k2500 rojas84, Aug 10, 2018 at 10:29 AM

  3. Exhaust

    Anything exhaust - from headers cats and pipes to tips.
    752
    Discussions
    9,190
    Messages
    Latest: 6.5 Diesel Exhaust on 454 Fez_Jet_Az, Aug 9, 2018 at 6:27 PM
Page 1 of 456
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Last Message ↓
  1. Mike

    The Stupid Engine Questions Thread

    Mike, Dec 3, 2009 ... 103 104 105
    Replies:
    1,047
    Views:
    126,449
    Wade
    Aug 12, 2018 at 10:19 AM
  2. supjim12

    Tune Up Parts Numbers

    supjim12, Dec 22, 2009 ... 2 3 4
    Replies:
    33
    Views:
    22,947
    Schurkey
    Jul 20, 2018
  3. shelbyt.67

    ULTIMATE TBI mods stage 1

    shelbyt.67, Jun 28, 2012 ... 22 23 24
    Replies:
    230
    Views:
    157,640
    meir
    May 5, 2018
  4. Ginger

    Water Pump Relacement

    Ginger, Dec 4, 2009 ... 4 5 6
    Replies:
    59
    Views:
    30,616
    Ed_P
    Apr 26, 2018
  5. Greg

    Maintenance: RPO Code Database & Decoder

    Greg, Dec 4, 2009 ... 2 3
    Replies:
    21
    Views:
    15,083
    94burbk1500
    Apr 12, 2018
  6. Ginger

    Intake Gasket Replacement

    Ginger, Dec 4, 2009 ... 6 7 8
    Replies:
    76
    Views:
    46,526
    Wade
    Feb 16, 2018
  7. Bighead38

    Putting A Chip In A TBI Truck

    Bighead38, Dec 3, 2009 ... 12 13 14
    Replies:
    134
    Views:
    113,374
    Bodageta1995
    Feb 15, 2018
  8. Hodges87

    How to Replace oil filter adapter gasket & o-ring

    Hodges87, Dec 14, 2009 ... 3 4 5
    Replies:
    45
    Views:
    89,456
    MIHELA
    Jan 18, 2018
  9. Greg

    GMT400 History

    Greg, Mar 16, 2010 ... 18 19 20
    Replies:
    199
    Views:
    153,760
    ThundahBeagle
    Nov 26, 2017
  10. Devs93

    The Ultimate 88-98 Performance Toolbox

    Devs93, Aug 1, 2012 ... 2 3
    Replies:
    25
    Views:
    98,434
    superdave
    Jul 27, 2017
  11. Mike

    LS Swapping and Performance FAQ

    Mike, Aug 3, 2013
    Replies:
    9
    Views:
    12,933
    Fedeleon11
    Sep 24, 2016
  12. monstar_est87

    How to MarkVIII your OBS on a budget..!

    monstar_est87, Apr 30, 2012 ... 14 15 16
    Replies:
    153
    Views:
    74,418
    KrpticKyler
    Jul 30, 2015
  13. 88GMCtruck

    Engine Oil Cooler Upgrade: Add 2 quarts! (SAS guys you'll want to see this)

    88GMCtruck, Apr 14, 2010 ... 2 3
    Replies:
    21
    Views:
    34,523
    txgp17
    Oct 24, 2013
  1. damage41

    454 vs 6.0

    damage41, Aug 13, 2018 at 4:10 PM ... 2
    Replies:
    13
    Views:
    234
    1989GMCSIERRA
    Aug 14, 2018 at 11:11 AM
  2. smurfcivic

    91 Chevy 5.7 temp gauge not working

    smurfcivic, Aug 11, 2018 at 9:34 PM
    Replies:
    7
    Views:
    172
    Jared Jackson
    Aug 14, 2018 at 10:56 AM
  3. WVChevyBear

    Brown wire charging issues.

    WVChevyBear, Aug 13, 2018 at 10:33 PM
    Replies:
    2
    Views:
    33
    WVChevyBear
    Aug 14, 2018 at 9:58 AM
  4. Scholioso

    6.5 to 12v Sensor Hookup

    Scholioso, Aug 14, 2018 at 2:12 AM
    Replies:
    0
    Views:
    17
    Scholioso
    Aug 14, 2018 at 2:12 AM
  5. Missouri Mule K30

    98 Chevrolet Throttle Body Plate

    Missouri Mule K30, Aug 14, 2018 at 1:02 AM
    Replies:
    0
    Views:
    33
    Missouri Mule K30
    Aug 14, 2018 at 1:02 AM
  6. letitsnow

    Has anybody deleted everything from a vortec 350?

    letitsnow, Aug 11, 2018 at 8:51 PM ... 2
    Replies:
    18
    Views:
    786
    Supercharged111
    Aug 14, 2018 at 12:09 AM
  7. chevyjack

    High Idle

    chevyjack, Feb 20, 2018
    Replies:
    6
    Views:
    265
    lxe4
    Aug 14, 2018 at 12:06 AM
  8. gord1895

    Newbie question on 350 heads...

    gord1895, Aug 13, 2018 at 11:25 PM
    Replies:
    0
    Views:
    28
    gord1895
    Aug 13, 2018 at 11:25 PM
  9. 454cid

    Underhood storage box useful or not?

    454cid, Aug 10, 2018 at 7:17 PM ... 2
    Replies:
    19
    Views:
    593
    98chevy2500SS
    Aug 13, 2018 at 10:45 PM
  10. EmeraldFlame772

    How does this 400 setup sound?

    EmeraldFlame772, Aug 8, 2018 at 2:01 PM ... 2 3
    Replies:
    20
    Views:
    470
    CrustyJunker
    Aug 13, 2018 at 9:27 PM
  11. ouray19

    Lean exhaust and other codes

    ouray19, Jan 11, 2018 ... 2 3
    Replies:
    21
    Views:
    940
    ouray19
    Aug 13, 2018 at 2:09 PM
  12. wkobe88822

    fuel pump relay 98 5.7

    wkobe88822, Aug 11, 2018 at 9:43 PM
    Replies:
    6
    Views:
    212
    Schurkey
    Aug 13, 2018 at 11:53 AM
  13. Truckman98

    94 cylinder heads

    Truckman98, Aug 7, 2018 ... 2
    Replies:
    16
    Views:
    473
    retorq
    Aug 13, 2018 at 10:32 AM
  14. Turbokat

    no power to injectors after swap (5.7 vortec)

    Turbokat, Aug 8, 2018 at 6:32 PM ... 2
    Replies:
    12
    Views:
    354
    Steve A
    Aug 13, 2018 at 10:21 AM
  15. Squirrelizer

    7.4 Vortec 2 cylinders not igniting with spark.

    Squirrelizer, Aug 5, 2018
    Replies:
    3
    Views:
    138
    Squirrelizer
    Aug 13, 2018 at 9:29 AM
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