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!
    872
    Discussions
    10,751
    Messages
    Latest: 5.7 Vortec: Intermittant start failure. GoToGuy, Apr 18, 2021 at 1:22 AM

  2. LSX + Carb Swaps

    This section is for info on LSX or carburetor swaps into the OBS trucks.
    435
    Discussions
    5,406
    Messages
    Latest: Before LS powering a 95 Tahoe 4x4 Erik the Awful, Apr 6, 2021

  3. Exhaust

    Anything exhaust - from headers cats and pipes to tips.
    894
    Discussions
    10,627
    Messages
    Latest: Bosal 0795111 - Does it fit K series TBI? GoToGuy, Apr 18, 2021 at 2:34 AM
Page 1 of 605
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Last Message ↓
  1. Ginger

    Intake Gasket Replacement

    Ginger, Dec 4, 2009 ... 11 12 13
    Replies:
    123
    Views:
    87,930
    Pinger
    Apr 12, 2021 at 1:34 PM
  2. Mike

    The Stupid Engine Questions Thread

    Mike, Dec 3, 2009 ... 156 157 158
    Replies:
    1,571
    Views:
    227,182
    Erik the Awful
    Apr 9, 2021
  3. Devs93

    The Ultimate 88-98 Performance Toolbox

    Devs93, Aug 1, 2012 ... 2 3 4
    Replies:
    33
    Views:
    173,721
    bhopthewelder
    Apr 5, 2021
  4. shelbyt.67

    ULTIMATE TBI mods stage 1

    shelbyt.67, Jun 28, 2012 ... 25 26 27
    Replies:
    265
    Views:
    256,134
    duallburb
    Mar 21, 2021
  5. monstar_est87

    How to MarkVIII your OBS on a budget..!

    monstar_est87, Apr 30, 2012 ... 15 16 17
    Replies:
    169
    Views:
    122,666
    duallburb
    Mar 21, 2021
  6. Ginger

    Water Pump Relacement

    Ginger, Dec 4, 2009 ... 7 8 9
    Replies:
    84
    Views:
    63,662
    PlayingWithTBI
    Dec 6, 2020
  7. Hodges87

    How to Replace oil filter adapter gasket & o-ring

    Hodges87, Dec 14, 2009 ... 4 5 6
    Replies:
    52
    Views:
    131,852
    HotWheelsBurban
    Oct 21, 2020
  8. Greg

    GMT400 History

    Greg, Mar 16, 2010 ... 22 23 24
    Replies:
    233
    Views:
    246,913
    Erik the Awful
    Sep 14, 2020
  9. Bighead38

    Putting A Chip In A TBI Truck

    Bighead38, Dec 3, 2009 ... 18 19 20
    Replies:
    199
    Views:
    215,557
    PlayingWithTBI
    Aug 25, 2020
  10. Greg

    Maintenance: RPO Code Database & Decoder

    Greg, Dec 4, 2009 ... 2 3
    Replies:
    23
    Views:
    34,815
    dAT OBS
    Feb 28, 2020
  11. supjim12

    Tune Up Parts Numbers

    supjim12, Dec 22, 2009 ... 2 3 4
    Replies:
    34
    Views:
    50,922
    Donald Mitchell
    Dec 26, 2019
  12. Mike

    LS Swapping and Performance FAQ

    Mike, Aug 3, 2013
    Replies:
    9
    Views:
    25,699
    Fedeleon11
    Sep 24, 2016
  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:
    60,157
    txgp17
    Oct 24, 2013
  1. kenh

    The end all engine fixer....

    kenh, Apr 1, 2021 ... 2
    Replies:
    19
    Views:
    1,202
    Medic0893
    Apr 18, 2021 at 2:29 AM
  2. Eskimomann209

    1993 6.5 TD

    Eskimomann209, Apr 17, 2021 at 4:56 PM
    Replies:
    6
    Views:
    95
    Supercharged111
    Apr 18, 2021 at 12:27 AM
  3. Txlock

    Ecm delete?

    Txlock, Apr 17, 2021 at 10:17 AM
    Replies:
    7
    Views:
    130
    GoToGuy
    Apr 18, 2021 at 12:12 AM
  4. RustyShackleford

    TBI surging

    RustyShackleford, Apr 17, 2021 at 8:19 PM
    Replies:
    6
    Views:
    102
    thinger2
    Apr 17, 2021 at 11:15 PM
  5. NETFREEE

    Intermittent No Crank

    NETFREEE, Nov 18, 2019 ... 2
    Replies:
    13
    Views:
    706
    Schurkey
    Apr 17, 2021 at 9:24 PM
  6. Txlock

    Here’s what I got, here’s what I want to do.

    Txlock, Apr 13, 2021 at 9:30 AM ... 2 3 4
    Replies:
    34
    Views:
    1,138
    badco
    Apr 17, 2021 at 8:40 PM
  7. R422b

    Talk some sense into me please.

    R422b, Apr 13, 2021 at 12:52 PM ... 7 8 9
    Replies:
    88
    Views:
    3,141
    badco
    Apr 17, 2021 at 8:33 PM
  8. eran tomer

    Tps install

    eran tomer, Apr 7, 2021 ... 2
    Replies:
    13
    Views:
    489
    udidwht
    Apr 17, 2021 at 1:16 PM
  9. udidwht

    AC condenser fan?

    udidwht, Apr 17, 2021 at 1:01 PM
    Replies:
    0
    Views:
    77
    udidwht
    Apr 17, 2021 at 1:01 PM
  10. dinman

    '99 K2500 Suburban violent drivetrain jolting at highway speeds

    dinman, Apr 13, 2021 at 11:28 PM
    Replies:
    2
    Views:
    213
    dinman
    Apr 17, 2021 at 11:48 AM
  11. Marcos Beltran

    Starting and Acceleration Issues

    Marcos Beltran, Apr 15, 2021 at 11:14 AM ... 2 3 4
    Replies:
    38
    Views:
    798
    PlayingWithTBI
    Apr 17, 2021 at 11:28 AM
  12. Dak24

    Tbi help!

    Dak24, Apr 7, 2021 ... 2 3 4
    Replies:
    33
    Views:
    1,511
    Schurkey
    Apr 17, 2021 at 11:13 AM
  13. westsoundred

    Is 300 hp possible from a tbi

    westsoundred, Feb 2, 2020 ... 6 7 8
    Replies:
    78
    Views:
    9,274
    Gramps
    Apr 17, 2021 at 12:44 AM
  14. alpinecrick

    Brake Light Diagram

    alpinecrick, May 21, 2017
    Replies:
    5
    Views:
    13,026
    Nicolas Arsenault
    Apr 16, 2021 at 9:00 PM
  15. Tornexted

    How to replace an A/C condenser on a 6.5L diesel?

    Tornexted, Apr 15, 2021 at 6:05 PM
    Replies:
    7
    Views:
    159
    Tornexted
    Apr 16, 2021 at 5:37 AM
Showing threads 1 to 15 of 9,072

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