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!
    764
    Discussions
    9,144
    Messages
    Latest: 1997 Tahoe 383 Swapped INSANEREINDEER, Mar 31, 2020 at 11:31 PM

  2. LSX + Carb Swaps

    This section is for info on LSX or carburetor swaps into the OBS trucks.
    399
    Discussions
    5,144
    Messages
    Latest: What is everyone doing for headers? Kustombuilt1911, Mar 31, 2020 at 10:13 PM

  3. Exhaust

    Anything exhaust - from headers cats and pipes to tips.
    822
    Discussions
    9,840
    Messages
    Latest: New Exhaust 2001ZR2, Mar 31, 2020 at 6:27 PM
Car Parts
Page 1 of 541
Sort By:
Title Start Date
Replies Views
Last Message ↓
  1. Ginger

    Intake Gasket Replacement

    Ginger, Dec 4, 2009 ... 9 10 11
    Replies:
    100
    Views:
    71,506
    andy396
    Mar 12, 2020
  2. Ginger

    Water Pump Relacement

    Ginger, Dec 4, 2009 ... 6 7 8
    Replies:
    77
    Views:
    50,566
    54vicky
    Feb 28, 2020
  3. Greg

    Maintenance: RPO Code Database & Decoder

    Greg, Dec 4, 2009 ... 2 3
    Replies:
    23
    Views:
    27,574
    dAT OBS
    Feb 28, 2020
  4. Devs93

    The Ultimate 88-98 Performance Toolbox

    Devs93, Aug 1, 2012 ... 2 3
    Replies:
    28
    Views:
    143,239
    spolly74
    Feb 26, 2020
  5. Bighead38

    Putting A Chip In A TBI Truck

    Bighead38, Dec 3, 2009 ... 17 18 19
    Replies:
    185
    Views:
    172,356
    PlayingWithTBI
    Feb 20, 2020
  6. Mike

    The Stupid Engine Questions Thread

    Mike, Dec 3, 2009 ... 118 119 120
    Replies:
    1,190
    Views:
    184,235
    SAATR
    Feb 14, 2020
  7. Greg

    GMT400 History

    Greg, Mar 16, 2010 ... 19 20 21
    Replies:
    201
    Views:
    210,131
    884x4310ci
    Dec 28, 2019
  8. shelbyt.67

    ULTIMATE TBI mods stage 1

    shelbyt.67, Jun 28, 2012 ... 24 25 26
    Replies:
    250
    Views:
    217,185
    Donald Mitchell
    Dec 26, 2019
  9. monstar_est87

    How to MarkVIII your OBS on a budget..!

    monstar_est87, Apr 30, 2012 ... 15 16 17
    Replies:
    164
    Views:
    104,592
    McBroom
    Dec 26, 2019
  10. supjim12

    Tune Up Parts Numbers

    supjim12, Dec 22, 2009 ... 2 3 4
    Replies:
    34
    Views:
    40,302
    Donald Mitchell
    Dec 26, 2019
  11. Hodges87

    How to Replace oil filter adapter gasket & o-ring

    Hodges87, Dec 14, 2009 ... 3 4 5
    Replies:
    46
    Views:
    115,505
    Chevy blood
    Aug 16, 2018
  12. Mike

    LS Swapping and Performance FAQ

    Mike, Aug 3, 2013
    Replies:
    9
    Views:
    20,729
    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:
    50,579
    txgp17
    Oct 24, 2013
  1. Curt

    Shorty Headers Worth the Money?

    Curt, Apr 1, 2020 at 4:04 AM
    Replies:
    0
    Views:
    9
    Curt
    Apr 1, 2020 at 4:04 AM
  2. wb292

    Roller Rockers

    wb292, Mar 29, 2020 at 8:04 AM
    Replies:
    7
    Views:
    276
    wb292
    Mar 31, 2020 at 11:41 PM
  3. field57

    350 TBI overheating

    field57, Mar 30, 2020 at 8:32 PM
    Replies:
    5
    Views:
    162
    field57
    Mar 31, 2020 at 10:45 PM
  4. jeff9922

    What headers every one running

    jeff9922, Mar 31, 2020 at 2:25 PM
    Replies:
    2
    Views:
    83
    L31MaxExpress
    Mar 31, 2020 at 10:34 PM
  5. nobears

    Trashed my 4.3

    nobears, Mar 29, 2020 at 9:22 PM ... 2 3 4
    Replies:
    30
    Views:
    537
    Trenton
    Mar 31, 2020 at 10:01 PM
  6. hatzie

    88-95 Service Manuals

    hatzie, Dec 15, 2018 ... 2 3
    Replies:
    24
    Views:
    13,779
    Ghost350
    Mar 31, 2020 at 8:54 PM
  7. BOB THORNTON

    A/C Issues

    BOB THORNTON, Mar 31, 2020 at 4:59 PM
    Replies:
    0
    Views:
    49
    BOB THORNTON
    Mar 31, 2020 at 4:59 PM
  8. CRF450R

    Bought a new motor with a cam can I run it on stock tune till I can get it dyno tuned

    CRF450R, Feb 20, 2020 ... 4 5 6
    Replies:
    50
    Views:
    2,544
    CRF450R
    Mar 31, 2020 at 4:04 PM
  9. Connor C

    Would like advice/info on engine swap

    Connor C, Mar 30, 2020 at 10:15 PM
    Replies:
    5
    Views:
    154
    Connor C
    Mar 31, 2020 at 1:56 PM
  10. OBS_Build

    Rough idle and down on power

    OBS_Build, Mar 30, 2020 at 11:25 PM
    Replies:
    2
    Views:
    72
    OBS_Build
    Mar 31, 2020 at 10:46 AM
  11. White96k2500

    5.7 Vortec motor price

    White96k2500, Mar 23, 2020
    Replies:
    3
    Views:
    372
    Erik the Awful
    Mar 31, 2020 at 10:19 AM
  12. mkcustoms881

    Mild 5.7 vortec upgrades

    mkcustoms881, Feb 24, 2020
    Replies:
    9
    Views:
    704
    Realslimshady
    Mar 31, 2020 at 1:08 AM
  13. Birdman99

    Performance chip

    Birdman99, Mar 30, 2020 at 11:21 PM
    Replies:
    3
    Views:
    136
    L31MaxExpress
    Mar 31, 2020 at 12:24 AM
  14. mxmotorhead24

    frankenstein of a truck....90-93

    mxmotorhead24, Mar 29, 2020 at 1:26 PM
    Replies:
    3
    Views:
    202
    Schurkey
    Mar 30, 2020 at 11:13 PM
  15. Saab84mw

    Removing 7.4 Vortech from my 1999 K2500 suburban

    Saab84mw, Mar 7, 2020 ... 2 3 4
    Replies:
    37
    Views:
    1,543
    Supercharged111
    Mar 30, 2020 at 10:41 PM
Showing threads 1 to 15 of 8,104

Thread Display Options

Loading...
Page 1 of 541