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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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Another 454 Vortec Build Thread - Documenting, Q&A, Help
27 minutes ago
Spareparts
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
Wednesday at 12:23 PM
MarKist
Exhaust
Anything exhaust - from headers cats and pipes to tips.
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L
BBK Exhaust Header
Today at 6:54 AM
LTrUS
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Sticky
The Stupid Engine Questions Thread
Mike
Dec 3, 2009
207
208
209
Replies
2K
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368K
Thursday at 9:25 AM
baddawg
Sticky
GMT400 - Community Scan Tool
studigggs
Jan 9, 2023
30
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32
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312
Views
32K
Monday at 12:12 PM
Blue Max
B
Sticky
88-98 Service Manuals
hatzie
Dec 15, 2018
13
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15
Replies
144
Views
242K
Apr 20, 2024
BeautyandtheBeast
Sticky
Let's get connected!!!
Scooterwrench
Oct 1, 2023
4
5
6
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59
Views
6K
Apr 1, 2024
Scooterwrench
Sticky
How to Put a Vortec Motor in a TBI Truck
Erik the Awful
Jun 17, 2020
10
11
12
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113
Views
73K
Mar 26, 2024
rebelyell
R
Sticky
TBI small block intake gasket replacement (PIC HEAVY)
someotherguy
Dec 25, 2022
3
4
5
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41
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13K
Feb 16, 2024
95OBSMan
Sticky
Engine Oil Cooler Upgrade: Add 2 quarts! (SAS guys you'll want to see this)
88GMCtruck
Apr 14, 2010
2
3
Replies
28
Views
73K
Dec 27, 2023
pgutier1
Sticky
How to MarkVIII your OBS on a budget..!
monstar_est87
Apr 30, 2012
16
17
18
Replies
171
Views
145K
Sep 23, 2023
Casey916
Sticky
Putting A Chip In A TBI Truck
Bighead38
Dec 3, 2009
19
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21
Replies
202
Views
295K
Jul 10, 2023
mwilliams55555
Sticky
Maintenance: RPO Code Database & Decoder
Greg
Dec 4, 2009
2
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4
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33
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49K
Jul 3, 2023
GoToGuy
Sticky
How to Replace oil filter adapter gasket & o-ring
Hodges87
Dec 14, 2009
4
5
6
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55
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159K
Jun 20, 2023
Illbedipped
D
Sticky
The Ultimate 88-98 Performance Toolbox
Devs93
Aug 1, 2012
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4
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35
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249K
Mar 12, 2023
jpcedotal
Sticky
GMT400 History
Greg
Mar 16, 2010
23
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25
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245
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327K
Feb 27, 2023
Will Fuller
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Sticky
Intake Gasket Replacement
Ginger
Dec 4, 2009
11
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124
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120K
Dec 9, 2022
mary7654
M
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Sticky
Tune Up Parts Numbers
supjim12
Dec 22, 2009
2
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37
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65K
May 15, 2022
Erik the Awful
S
Sticky
ULTIMATE TBI mods stage 1
shelbyt.67
Jun 28, 2012
26
27
28
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273
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328K
May 5, 2022
PlayingWithTBI
Sticky
Water Pump Relacement
Ginger
Dec 4, 2009
7
8
9
Replies
86
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84K
Jun 7, 2021
HotWheelsBurban
Throttle Body Spacer
BigWaveDaveAZ
Mar 18, 2019
2
Replies
19
Views
25K
31 minutes ago
Scooterwrench
Grounded alternator, now no start
_rgk
Yesterday at 7:15 PM
Replies
9
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143
Today at 5:36 AM
_rgk
J
Vortec V6 vs V8 A/C System Differences?
jimdaug
Today at 1:02 AM
Replies
3
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50
Today at 1:52 AM
jimdaug
J
Rats... need a new part
sactown
Thursday at 11:46 PM
Replies
8
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233
Today at 12:23 AM
smdk2500
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starter bendix gremlin
pichaelsux
Wednesday at 7:24 AM
2
Replies
10
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255
Yesterday at 11:16 PM
HotWheelsBurban
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Intake manifold
Feral peasant
Yesterday at 8:10 PM
Replies
6
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135
Yesterday at 10:18 PM
99xcss4
R
1995 k1500, 5.7/350. Backfires through intake
RhettR7707
Thursday at 12:00 AM
2
Replies
11
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190
Yesterday at 10:13 PM
Schurkey
Collapsed Lifters 95 GenV Big Block
grampadirt
Mar 14, 2024
2
3
Replies
28
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1K
Yesterday at 10:12 PM
grampadirt
M
Tbi distributor magnet protection from rust question
man-a-fre
Tuesday at 8:37 AM
2
Replies
13
Views
293
Yesterday at 9:51 PM
Schurkey
Crank no start no rpm 96 5.7
Thatbluek1500
Feb 8, 2024
2
Replies
12
Views
2K
Yesterday at 7:32 PM
Schurkey
A/c compressor leak?
Crazyagain
Jul 17, 2023
2
3
Replies
24
Views
3K
Yesterday at 1:56 PM
95Noobie
J
Water pump and thermostat
JTMiller13
Jan 12, 2024
2
3
4
Replies
38
Views
3K
Yesterday at 11:54 AM
95Noobie
305 tbi to 350 tbi swap
willy
Feb 10, 2016
Replies
4
Views
8K
Yesterday at 11:50 AM
PlayingWithTBI
J
350 vortec choppy cam
Jake rogers
Yesterday at 1:30 AM
Replies
4
Views
169
Yesterday at 11:03 AM
Erik the Awful
Y
1995 5.7 head / head gasket issue.
youtubemechwitsense
Thursday at 7:00 PM
Replies
5
Views
157
Yesterday at 11:00 AM
Erik the Awful
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