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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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18.9K
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S
L31 Extreme Budget Build
18 minutes ago
Supercharged111
LSX + Carb Swaps
This section is for info on LSX or carburetor swaps into the OBS trucks.
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632
Messages
7.9K
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632
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7.9K
6.0 ls swapped 95c1500
Yesterday at 12:23 PM
MarKist
Exhaust
Anything exhaust - from headers cats and pipes to tips.
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1.1K
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13.8K
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1.1K
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13.8K
Keep Manifolds or get shorties?
Today at 7:13 PM
0xDEADBEEF
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Sticky
The Stupid Engine Questions Thread
Mike
Dec 3, 2009
207
208
209
Replies
2K
Views
368K
Today at 9:25 AM
baddawg
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Sticky
ULTIMATE TBI mods stage 1
shelbyt.67
Jun 28, 2012
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28
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273
Views
328K
May 5, 2022
PlayingWithTBI
Sticky
GMT400 History
Greg
Mar 16, 2010
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25
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245
Views
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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202
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295K
Jul 10, 2023
mwilliams55555
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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
88-98 Service Manuals
hatzie
Dec 15, 2018
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144
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241K
Saturday at 8:00 PM
BeautyandtheBeast
Sticky
How to Replace oil filter adapter gasket & o-ring
Hodges87
Dec 14, 2009
4
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6
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55
Views
159K
Jun 20, 2023
Illbedipped
Sticky
How to MarkVIII your OBS on a budget..!
monstar_est87
Apr 30, 2012
16
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18
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171
Views
145K
Sep 23, 2023
Casey916
Sticky
Intake Gasket Replacement
Ginger
Dec 4, 2009
11
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124
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120K
Dec 9, 2022
mary7654
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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
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
Engine Oil Cooler Upgrade: Add 2 quarts! (SAS guys you'll want to see this)
88GMCtruck
Apr 14, 2010
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73K
Dec 27, 2023
pgutier1
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Sticky
Tune Up Parts Numbers
supjim12
Dec 22, 2009
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37
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65K
May 15, 2022
Erik the Awful
Sticky
Maintenance: RPO Code Database & Decoder
Greg
Dec 4, 2009
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33
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49K
Jul 3, 2023
GoToGuy
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
B
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
Sticky
Let's get connected!!!
Scooterwrench
Oct 1, 2023
4
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59
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6K
Apr 1, 2024
Scooterwrench
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TBI on a dual plane Manifold??
racprops
May 21, 2020
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26
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383K
Sep 8, 2020
Erik the Awful
Delete Oil Cooler lines?
Old77
Nov 29, 2014
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43
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161K
Jan 4, 2021
Ruger_556
Setting distributor timing without $$$$ scan tool? 1999 5.7 Suburban
redfishsc
Jan 15, 2017
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35
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157K
Mar 15, 2022
454cid
EGR Delete - Will I benefit?
Nathaniel2g
Nov 9, 2017
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72
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155K
Mar 22, 2024
L31MaxExpress
can ya remove egr on an 88 tbi w/o working on the computer?
Swims350
May 19, 2010
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77
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139K
Jun 7, 2021
fixit
F
5.7 vortec which Programmer to buy?
AJKZ71
Dec 26, 2011
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21
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134K
Jan 28, 2012
Tempted
Torque Specs Thread
SkyHighColorado
Feb 16, 2014
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22
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121K
Jul 7, 2021
df2x4
CODE 44 - Lean Exhaust? Low oxygen sensor voltage..350 TBI code
Southern Pride
Aug 14, 2011
5
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62
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120K
Aug 27, 2011
Swaggerwagon
How much fuel pressure for a 5.7 vortec?
Fast 95
Mar 24, 2010
2
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16
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117K
Mar 26, 2010
RSTahoe99
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5.7L Cold Air Intakes?
flyboy1294
Jul 29, 2011
5
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66
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116K
Sep 20, 2023
ccreddell
replace clutch fan with Electric fan
94chevy4x4
Oct 9, 2010
11
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123
Views
113K
Mar 11, 2015
EmeraldGreenVortec
"Engine Swap"... Vortec 4.3L V6 to Vortec 5.7L V8
severedchris
Feb 22, 2012
2
3
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25
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111K
Oct 4, 2023
jasonhyde28
J
turbo kit for my 91 tbi 350?
superninja427
Feb 9, 2012
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32
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107K
Apr 1, 2012
stevehayes01
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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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96k3500 454 Whipple Supercharger build thread
dale_gribble
Oct 17, 2011
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143
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104K
Nov 1, 2023
Stockman4127
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700R4 Information Thread
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10 minutes ago
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L31 Extreme Budget Build
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