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Engine Performance + Maintenance
If it's under the hood, its in here.
96+ Vortec Performance + Computer Swaps
If you want to do the 0411 PCM swap or have a 1996+ Vortec motor this is your forum!
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18.8K
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S
Vortec MPI injectors "click"?
23 minutes ago
Skip Fix
LSX + Carb Swaps
This section is for info on LSX or carburetor swaps into the OBS trucks.
Threads
632
Messages
7.9K
Threads
632
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7.9K
6.0 ls swapped 95c1500
Today at 12:23 PM
MarKist
Exhaust
Anything exhaust - from headers cats and pipes to tips.
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13.8K
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13.8K
Headers for 1989 swb silverado 350 2wd
Yesterday at 7:39 AM
RoyBob
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Sticky
The Stupid Engine Questions Thread
Mike
Dec 3, 2009
207
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209
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2K
Views
368K
Yesterday at 5:33 PM
IcicleDBR
Sticky
GMT400 - Community Scan Tool
studigggs
Jan 9, 2023
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312
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32K
Monday at 12:12 PM
Blue Max
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Sticky
ULTIMATE TBI mods stage 1
shelbyt.67
Jun 28, 2012
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273
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327K
May 5, 2022
PlayingWithTBI
Sticky
GMT400 History
Greg
Mar 16, 2010
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245
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327K
Feb 27, 2023
Will Fuller
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Sticky
Putting A Chip In A TBI Truck
Bighead38
Dec 3, 2009
19
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21
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202
Views
295K
Jul 10, 2023
mwilliams55555
Sticky
How to MarkVIII your OBS on a budget..!
monstar_est87
Apr 30, 2012
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171
Views
145K
Sep 23, 2023
Casey916
Sticky
88-98 Service Manuals
hatzie
Dec 15, 2018
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15
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144
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240K
Saturday at 8:00 PM
BeautyandtheBeast
Sticky
Intake Gasket Replacement
Ginger
Dec 4, 2009
11
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13
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124
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120K
Dec 9, 2022
mary7654
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Sticky
How to Put a Vortec Motor in a TBI Truck
Erik the Awful
Jun 17, 2020
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113
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73K
Mar 26, 2024
rebelyell
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Sticky
Water Pump Relacement
Ginger
Dec 4, 2009
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86
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84K
Jun 7, 2021
HotWheelsBurban
Sticky
Let's get connected!!!
Scooterwrench
Oct 1, 2023
4
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6
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59
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6K
Apr 1, 2024
Scooterwrench
Sticky
How to Replace oil filter adapter gasket & o-ring
Hodges87
Dec 14, 2009
4
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55
Views
159K
Jun 20, 2023
Illbedipped
Sticky
TBI small block intake gasket replacement (PIC HEAVY)
someotherguy
Dec 25, 2022
3
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41
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13K
Feb 16, 2024
95OBSMan
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Tune Up Parts Numbers
supjim12
Dec 22, 2009
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37
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65K
May 15, 2022
Erik the Awful
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Sticky
The Ultimate 88-98 Performance Toolbox
Devs93
Aug 1, 2012
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35
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249K
Mar 12, 2023
jpcedotal
Sticky
Maintenance: RPO Code Database & Decoder
Greg
Dec 4, 2009
2
3
4
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33
Views
49K
Jul 3, 2023
GoToGuy
Sticky
Engine Oil Cooler Upgrade: Add 2 quarts! (SAS guys you'll want to see this)
88GMCtruck
Apr 14, 2010
2
3
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28
Views
73K
Dec 27, 2023
pgutier1
V
Poll
What kind of mileage do you get?
Vortec Lover
Oct 10, 2012
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106K
May 10, 2017
DerekTheGreat
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4.3L to ?? swap.
DeCaff2007
Aug 12, 2022
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565
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40K
Jan 11, 2024
1998_K1500_Sub
My Flat Tappet Cam Wiped Out So I Decided To Go Roller
PlayingWithTBI
Nov 29, 2022
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501
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47K
Mar 18, 2024
Moofus02
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98 chevy 1500 engine issue
Dougm72
Dec 14, 2010
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372
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47K
Sep 19, 2011
Dougm72
88-94 5.7 Suburban A/C Diagnosis and Tuning
Wildblue19
Aug 6, 2022
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337
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26K
Mar 23, 2024
1998_K1500_Sub
S
1993 Yukon crate motor hydraulic roller lifter cleaning and adjustment journey - (Solved)
scott2093
Feb 19, 2024
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13K
Monday at 10:52 PM
scott2093
S
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First real test drive today, after V8 swap.
DeCaff2007
Jan 25, 2024
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267
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13K
Apr 3, 2024
DeCaff2007
D
Installing an LT1 in a 1997 K1500 SBSS
Tinbender59
Mar 17, 2011
24
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257
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75K
Dec 5, 2012
Tinbender59
My documented TBI-to-Vortec 350 conversion!
jdyates
Jun 21, 2013
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242
Views
104K
Nov 26, 2023
jdyates
I'm out of ideas, guys. (Truck runs like crap no matter what I do).
jdyates
Feb 6, 2013
23
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25
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240
Views
22K
Feb 20, 2013
oohunter04oo
FastOrange: Stage 2 (Transmission)
FastOrange
Dec 21, 2010
18
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191
Views
25K
Jun 14, 2011
FastOrange
Better gas mileage and performance.
JoeJoe1993
May 23, 2023
17
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19
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189
Views
12K
Mar 27, 2024
95Noobie
Head Swap Options For 5.7L 350 TBI Engine
Majoraslayer
Jan 4, 2024
16
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18
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179
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20K
Apr 15, 2024
rebelyell
R
S
1999 5.7 350 vortec P0304 cylinder 4 misfire
socal k1500
Oct 2, 2023
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174
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11K
Monday at 1:55 PM
socal k1500
S
Random cylinder msifire!!!!!!
Fast 95
Dec 27, 2009
16
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172
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24K
Jan 17, 2011
jb2000tahoe
J
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