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!
    689
    Discussions
    8,171
    Messages
    Latest: HP tuners. Christian Steffen, Apr 22, 2019 at 1:01 PM

  2. LSX + Carb Swaps

    This section is for info on LSX or carburetor swaps into the OBS trucks.
    365
    Discussions
    4,853
    Messages
    Latest: Trying to wrap my head around LS Swap wiring for my 96 C1500 Jglew82, Apr 22, 2019 at 10:05 AM

  3. Exhaust

    Anything exhaust - from headers cats and pipes to tips.
    787
    Discussions
    9,474
    Messages
    Latest: 4x4 97 tahoe headers ? HELP upper_tanker, Apr 9, 2019
Page 1 of 490
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Title Start Date
Replies Views
Last Message ↓
  1. Bighead38

    Putting A Chip In A TBI Truck

    Bighead38, Dec 3, 2009 ... 15 16 17
    Replies:
    163
    Views:
    136,469
    Gavin
    Mar 31, 2019
  2. Mike

    The Stupid Engine Questions Thread

    Mike, Dec 3, 2009 ... 107 108 109
    Replies:
    1,082
    Views:
    150,001
    Gavin
    Mar 25, 2019
  3. Devs93

    The Ultimate 88-98 Performance Toolbox

    Devs93, Aug 1, 2012 ... 2 3
    Replies:
    26
    Views:
    116,561
    Riverado2012
    Mar 13, 2019
  4. monstar_est87

    How to MarkVIII your OBS on a budget..!

    monstar_est87, Apr 30, 2012 ... 14 15 16
    Replies:
    156
    Views:
    86,327
    Supercharged111
    Jan 28, 2019
  5. Ginger

    Intake Gasket Replacement

    Ginger, Dec 4, 2009 ... 7 8 9
    Replies:
    86
    Views:
    55,596
    Markus
    Jan 23, 2019
  6. Greg

    Maintenance: RPO Code Database & Decoder

    Greg, Dec 4, 2009 ... 2 3
    Replies:
    22
    Views:
    19,810
    Kyle89
    Dec 30, 2018
  7. shelbyt.67

    ULTIMATE TBI mods stage 1

    shelbyt.67, Jun 28, 2012 ... 23 24 25
    Replies:
    245
    Views:
    183,991
    92GMCK2500
    Nov 21, 2018
  8. Ginger

    Water Pump Relacement

    Ginger, Dec 4, 2009 ... 5 6 7
    Replies:
    67
    Views:
    37,874
    Jared Jackson
    Aug 28, 2018
  9. Hodges87

    How to Replace oil filter adapter gasket & o-ring

    Hodges87, Dec 14, 2009 ... 3 4 5
    Replies:
    46
    Views:
    99,728
    Chevy blood
    Aug 16, 2018
  10. supjim12

    Tune Up Parts Numbers

    supjim12, Dec 22, 2009 ... 2 3 4
    Replies:
    33
    Views:
    29,017
    Schurkey
    Jul 20, 2018
  11. Greg

    GMT400 History

    Greg, Mar 16, 2010 ... 18 19 20
    Replies:
    199
    Views:
    176,499
    ThundahBeagle
    Nov 26, 2017
  12. Mike

    LS Swapping and Performance FAQ

    Mike, Aug 3, 2013
    Replies:
    9
    Views:
    16,101
    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:
    40,780
    txgp17
    Oct 24, 2013
  1. Flextx500

    94 GMC K2500 with Fi-Tech EFI

    Flextx500, Apr 19, 2019 at 7:08 PM
    Replies:
    7
    Views:
    172
    Dubs
    Apr 22, 2019 at 2:30 PM
  2. bobby v

    TBI High idle

    bobby v, Apr 21, 2019 at 6:15 PM
    Replies:
    9
    Views:
    162
    bobby v
    Apr 22, 2019 at 1:47 PM
  3. BraunC2500

    Questions on Caliper Issues

    BraunC2500, Apr 15, 2019
    Replies:
    6
    Views:
    360
    BraunC2500
    Apr 22, 2019 at 1:38 PM
  4. Wheeler

    1998 Sierra with 383 Stroker...

    Wheeler, Apr 17, 2019 at 10:52 PM
    Replies:
    6
    Views:
    325
    Wheeler
    Apr 22, 2019 at 11:45 AM
  5. studigggs

    Tech 2 - What does it do?

    studigggs, Apr 19, 2019 at 2:14 PM
    Replies:
    7
    Views:
    325
    hatzie
    Apr 22, 2019 at 11:42 AM
  6. smdk2500

    6.5 pros and cons

    smdk2500, Apr 20, 2019 at 9:24 AM ... 2 3
    Replies:
    20
    Views:
    502
    Z71Hobbs
    Apr 22, 2019 at 11:02 AM
  7. 884x4310ci

    Egr delete

    884x4310ci, Apr 21, 2019 at 8:51 PM
    Replies:
    8
    Views:
    115
    PlayingWithTBI
    Apr 22, 2019 at 10:57 AM
  8. Darrell

    Distributor suggestions ?

    Darrell, Apr 21, 2019 at 4:56 PM
    Replies:
    3
    Views:
    90
    Darrell
    Apr 21, 2019 at 7:28 PM
  9. JJ Burgess

    Brake system help!

    JJ Burgess, Apr 19, 2019 at 8:41 AM ... 2 3 4
    Replies:
    31
    Views:
    694
    RawbDidIt
    Apr 21, 2019 at 6:44 PM
  10. 001pewter

    89 sierra 5.7 no start

    001pewter, Apr 20, 2019 at 6:38 PM
    Replies:
    5
    Views:
    123
    001pewter
    Apr 21, 2019 at 4:49 PM
  11. Supercharged111

    Need Fuel Line Removal Tools for Pump Sender Basket

    Supercharged111, Apr 21, 2019 at 1:26 PM
    Replies:
    2
    Views:
    67
    Supercharged111
    Apr 21, 2019 at 4:04 PM
  12. mudpie

    Heavy steering

    mudpie, Apr 4, 2019 ... 2
    Replies:
    10
    Views:
    614
    Supercharged111
    Apr 21, 2019 at 11:55 AM
  13. Jtrux

    1993 TBI shortblock with Vortec heads/intake questions

    Jtrux, Apr 20, 2019 at 8:08 PM
    Replies:
    5
    Views:
    195
    Supercharged111
    Apr 21, 2019 at 11:50 AM
  14. Koast

    Slight misfire question

    Koast, Apr 20, 2019 at 7:31 PM
    Replies:
    1
    Views:
    68
    skylark
    Apr 21, 2019 at 1:26 AM
  15. John Cunningham

    Rattling rumbling under light acceleration

    John Cunningham, Apr 1, 2019
    Replies:
    7
    Views:
    403
    Chevyguy78
    Apr 19, 2019 at 10:29 PM
Showing threads 1 to 15 of 7,339

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