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!
    829
    Discussions
    10,122
    Messages
    Latest: Which GM cam to perfect the L31? Hipster, Oct 29, 2020 at 3:19 AM

  2. LSX + Carb Swaps

    This section is for info on LSX or carburetor swaps into the OBS trucks.
    420
    Discussions
    5,300
    Messages
    Latest: 350 tbi mild build PlayingWithTBI, Oct 19, 2020

  3. Exhaust

    Anything exhaust - from headers cats and pipes to tips.
    867
    Discussions
    10,295
    Messages
    Latest: Writeup: Installing 5.7 TBI headers on 5.7 Vortec smdk2500, Oct 27, 2020 at 10:37 PM
Page 1 of 574
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  1. Mike

    The Stupid Engine Questions Thread

    Mike, Dec 3, 2009 ... 132 133 134
    Replies:
    1,339
    Views:
    202,717
    Schurkey
    Oct 30, 2020 at 2:07 AM
  2. Hodges87

    How to Replace oil filter adapter gasket & o-ring

    Hodges87, Dec 14, 2009 ... 4 5 6
    Replies:
    52
    Views:
    122,751
    HotWheelsBurban
    Oct 21, 2020
  3. Ginger

    Water Pump Relacement

    Ginger, Dec 4, 2009 ... 6 7 8
    Replies:
    79
    Views:
    57,308
    Wilecoyote
    Oct 20, 2020
  4. monstar_est87

    How to MarkVIII your OBS on a budget..!

    monstar_est87, Apr 30, 2012 ... 15 16 17
    Replies:
    165
    Views:
    113,447
    Schurkey
    Oct 20, 2020
  5. Devs93

    The Ultimate 88-98 Performance Toolbox

    Devs93, Aug 1, 2012 ... 2 3 4
    Replies:
    31
    Views:
    155,163
    Schurkey
    Oct 20, 2020
  6. Greg

    GMT400 History

    Greg, Mar 16, 2010 ... 22 23 24
    Replies:
    233
    Views:
    228,645
    Erik the Awful
    Sep 14, 2020
  7. Bighead38

    Putting A Chip In A TBI Truck

    Bighead38, Dec 3, 2009 ... 18 19 20
    Replies:
    199
    Views:
    191,752
    PlayingWithTBI
    Aug 25, 2020
  8. shelbyt.67

    ULTIMATE TBI mods stage 1

    shelbyt.67, Jun 28, 2012 ... 24 25 26
    Replies:
    255
    Views:
    236,403
    badco
    Aug 8, 2020
  9. Ginger

    Intake Gasket Replacement

    Ginger, Dec 4, 2009 ... 10 11 12
    Replies:
    115
    Views:
    80,072
    someotherguy
    Jun 6, 2020
  10. Greg

    Maintenance: RPO Code Database & Decoder

    Greg, Dec 4, 2009 ... 2 3
    Replies:
    23
    Views:
    30,905
    dAT OBS
    Feb 28, 2020
  11. supjim12

    Tune Up Parts Numbers

    supjim12, Dec 22, 2009 ... 2 3 4
    Replies:
    34
    Views:
    45,411
    Donald Mitchell
    Dec 26, 2019
  12. Mike

    LS Swapping and Performance FAQ

    Mike, Aug 3, 2013
    Replies:
    9
    Views:
    23,219
    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:
    55,308
    txgp17
    Oct 24, 2013
  1. Wilecoyote

    Seafoam OR Marvel Mystery oil?

    Wilecoyote, Oct 26, 2020 at 9:20 PM ... 2
    Replies:
    17
    Views:
    597
    454cid
    Oct 30, 2020 at 3:52 AM
  2. 1989k2500

    1994 DRAC question

    1989k2500, Oct 29, 2020 at 9:28 PM
    Replies:
    2
    Views:
    68
    Nickpisp
    Oct 29, 2020 at 10:35 PM
  3. 1989k2500

    1989 to 1994 swap

    1989k2500, Oct 29, 2020 at 7:38 PM
    Replies:
    1
    Views:
    92
    SUBURBAN5
    Oct 29, 2020 at 9:08 PM
  4. JACK34

    TBI TO CARB CONVERSION

    JACK34, Oct 24, 2020 at 1:11 PM ... 2 3
    Replies:
    25
    Views:
    875
    JACK34
    Oct 29, 2020 at 6:44 PM
  5. 1994chevycheyenne

    Is this the transmission speed sensor and is it easy to pull out?

    1994chevycheyenne, Oct 28, 2020 at 7:04 PM ... 2
    Replies:
    14
    Views:
    272
    studigggs
    Oct 29, 2020 at 6:16 PM
  6. 1989k2500

    1989 Chevy 350 out- 1994 Chevy 454 in - got a question now

    1989k2500, Oct 27, 2020 at 8:47 AM ... 2
    Replies:
    13
    Views:
    346
    1989k2500
    Oct 29, 2020 at 4:14 PM
  7. KRS1

    engine brackets for a 88 SBC (2 piece aluminum?)

    KRS1, Oct 20, 2020 ... 2
    Replies:
    16
    Views:
    481
    KRS1
    Oct 29, 2020 at 8:48 AM
  8. Matthew40566

    Carb problems.

    Matthew40566, Oct 26, 2020 at 7:36 AM
    Replies:
    6
    Views:
    238
    PlayingWithTBI
    Oct 29, 2020 at 12:29 AM
  9. 24 Karat Brown

    TBI 350 to TBI 454 swap?

    24 Karat Brown, Oct 22, 2020 ... 2
    Replies:
    17
    Views:
    691
    Godholio
    Oct 28, 2020 at 2:18 PM
  10. Gramps

    Ecm/prom question

    Gramps, Oct 26, 2020 at 7:42 PM ... 2
    Replies:
    12
    Views:
    304
    PlayingWithTBI
    Oct 28, 2020 at 1:50 PM
  11. Greg S Meier

    88 1500 5.0 throttle sticking closed

    Greg S Meier, Sep 19, 2020 ... 8 9 10
    Replies:
    91
    Views:
    2,650
    kenh
    Oct 27, 2020 at 9:19 PM
  12. kenh

    TBI sensitive off idle

    kenh, Oct 25, 2020 at 2:12 PM
    Replies:
    6
    Views:
    280
    kenh
    Oct 27, 2020 at 8:55 PM
  13. Thirsty

    First things first

    Thirsty, Oct 22, 2020 ... 2
    Replies:
    19
    Views:
    768
    badco
    Oct 27, 2020 at 8:01 PM
  14. redfishsc

    Who put V-Tech on my L31?

    redfishsc, Sep 20, 2020
    Replies:
    6
    Views:
    415
    Supercharged111
    Oct 27, 2020 at 11:26 AM
  15. BLACK&chrome

    steering components upgrades

    BLACK&chrome, Oct 26, 2020 at 10:51 AM
    Replies:
    3
    Views:
    187
    Dravec
    Oct 27, 2020 at 6:44 AM
Showing threads 1 to 15 of 8,606

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