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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!
Threads
1.1K
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14.6K
Threads
1.1K
Messages
14.6K
O
Vortec heads on stock TBI 350
8 minutes ago
OBSlates
LSX + Carb Swaps
This section is for info on LSX or carburetor swaps into the OBS trucks.
Threads
535
Messages
6.4K
Threads
535
Messages
6.4K
95 k2500 to 6.0l swap
16 minutes ago
TreeGeared
Exhaust
Anything exhaust - from headers cats and pipes to tips.
Threads
1K
Messages
12.1K
Threads
1K
Messages
12.1K
I think my catalitic converter is done
Today at 4:29 AM
someotherguy
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GMT400 - Community Scan Tool
studigggs
Jan 9, 2023
3
4
5
Replies
43
Views
2K
Monday at 3:54 PM
User_name
Sticky
How to Put a Vortec Motor in a TBI Truck
Erik the Awful
Jun 17, 2020
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57
Views
39K
Monday at 7:12 AM
Erik the Awful
Sticky
88-98 Service Manuals
hatzie
Dec 15, 2018
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10
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95
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133K
Sunday at 12:46 PM
mvfd5111
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Sticky
TBI small block intake gasket replacement (PIC HEAVY)
someotherguy
Dec 25, 2022
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3
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21
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2K
Saturday at 11:39 AM
Fatbastard
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Sticky
The Stupid Engine Questions Thread
Mike
Dec 3, 2009
189
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191
Replies
2K
Views
309K
Thursday at 5:45 PM
PlayingWithTBI
Sticky
GMT400 History
Greg
Mar 16, 2010
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25
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244
Views
296K
Jan 8, 2023
HotWheelsBurban
Sticky
Intake Gasket Replacement
Ginger
Dec 4, 2009
11
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13
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124
Views
107K
Dec 9, 2022
mary7654
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Sticky
Maintenance: RPO Code Database & Decoder
Greg
Dec 4, 2009
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4
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31
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43K
Oct 24, 2022
mattillac
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Sticky
Tune Up Parts Numbers
supjim12
Dec 22, 2009
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4
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37
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60K
May 15, 2022
Erik the Awful
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ULTIMATE TBI mods stage 1
shelbyt.67
Jun 28, 2012
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273
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304K
May 5, 2022
PlayingWithTBI
Sticky
How to Replace oil filter adapter gasket & o-ring
Hodges87
Dec 14, 2009
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6
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54
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148K
Oct 28, 2021
Schurkey
Sticky
Water Pump Relacement
Ginger
Dec 4, 2009
7
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9
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86
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77K
Jun 7, 2021
HotWheelsBurban
Sticky
Engine Oil Cooler Upgrade: Add 2 quarts! (SAS guys you'll want to see this)
88GMCtruck
Apr 14, 2010
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25
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68K
May 23, 2021
Cisco
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Sticky
The Ultimate 88-98 Performance Toolbox
Devs93
Aug 1, 2012
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33
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223K
Apr 5, 2021
bhopthewelder
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How to MarkVIII your OBS on a budget..!
monstar_est87
Apr 30, 2012
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169
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137K
Mar 21, 2021
duallburb
Sticky
Putting A Chip In A TBI Truck
Bighead38
Dec 3, 2009
18
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199
Views
264K
Aug 25, 2020
PlayingWithTBI
oil cooler lines
caw_86
Yesterday at 8:14 AM
2
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15
Views
318
17 minutes ago
Supercharged111
S
B
Engine wire harness interchange.
Buickman70
May 20, 2015
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2
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1K
34 minutes ago
Kerryadammackay
K
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Multiple Ignition Switch Failures
scarecrow55
Yesterday at 11:42 AM
Replies
2
Views
92
Today at 8:29 AM
Erik the Awful
J
Spider Injectors Clogged Completely
jce98
Yesterday at 7:40 AM
2
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17
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351
Today at 8:17 AM
kennythewelder
D
Vortec cam and EFI
Dk47
Monday at 10:21 PM
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6
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154
Today at 8:14 AM
Dk47
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Oil cooler plumbing and removal
kenh
Jan 26, 2023
Replies
7
Views
281
Today at 7:57 AM
GoToGuy
My Flat Tappet Cam Wiped Out So I Decided To Go Roller
PlayingWithTBI
Nov 29, 2022
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353
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12K
Yesterday at 11:58 PM
L31MaxExpress
E
Power steering cooler delete?
ericg75
Dec 20, 2022
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23
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1K
Yesterday at 9:22 PM
Nad_Yvalhosert
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Obd 1 scanner options
CountyLineGarage
Monday at 9:15 PM
Replies
5
Views
166
Yesterday at 7:46 PM
GoToGuy
Crate GM L31 Pricing
HopHead357
Nov 29, 2022
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3
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23
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2K
Yesterday at 2:18 PM
HopHead357
G
New to me truck. Need help tracking a problem....
gibsonfarmsmo
Sunday at 6:02 PM
Replies
8
Views
225
Yesterday at 10:35 AM
AuroraGirl
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Advice on 5.7 rebuild and performance upgrades
Dk47
Jan 7, 2023
2
Replies
17
Views
1K
Yesterday at 9:29 AM
Erik the Awful
E
heads and a roller cam
ericg75
Dec 4, 2022
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3
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25
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1K
Yesterday at 4:48 AM
Gramps
Best way to go
bigblackk94chevy
Friday at 1:56 PM
2
Replies
19
Views
545
Yesterday at 12:19 AM
bigblackk94chevy
Engine backfires and sputters when floored
greenz97
Thursday at 6:16 PM
2
3
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23
Views
571
Monday at 11:15 PM
greenz97
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Latest posts
O
Vortec heads on stock TBI 350
Latest: OBSlates
8 minutes ago
96+ Vortec Performance + Computer Swaps
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Audio + Electronics
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S
oil cooler lines
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