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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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19.1K
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Do I have to use same ECM with same spider injectors
Today at 5:09 AM
GoToGuy
LSX + Carb Swaps
This section is for info on LSX or carburetor swaps into the OBS trucks.
Threads
647
Messages
8K
Threads
647
Messages
8K
S
Favorite Shop for EV6 Injector Refresh?
Yesterday at 5:57 PM
Supercharged111
Exhaust
Anything exhaust - from headers cats and pipes to tips.
Threads
1.1K
Messages
13.9K
Threads
1.1K
Messages
13.9K
1997 C1500 5.7 Exhuast manifold 3 bolt flange help
Monday at 9:28 PM
Schurkey
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The Stupid Engine Questions Thread
Mike
Dec 3, 2009
208
209
210
Replies
2K
Views
377K
Wednesday at 10:25 AM
ralmo94
Sticky
GMT400 - Community Scan Tool
studigggs
Jan 9, 2023
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33
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322
Views
35K
May 24, 2024
Bob2650
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Sticky
How to Put a Vortec Motor in a TBI Truck
Erik the Awful
Jun 17, 2020
10
11
12
Replies
117
Views
77K
May 21, 2024
Majoraslayer
D
Sticky
The Ultimate 88-98 Performance Toolbox
Devs93
Aug 1, 2012
2
3
4
Replies
36
Views
252K
May 17, 2024
poncho98
Sticky
Engine Oil Cooler Upgrade: Add 2 quarts! (SAS guys you'll want to see this)
88GMCtruck
Apr 14, 2010
2
3
Replies
29
Views
74K
May 17, 2024
poncho98
Sticky
Putting A Chip In A TBI Truck
Bighead38
Dec 3, 2009
19
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21
Replies
205
Views
299K
May 17, 2024
Tomcat71
Sticky
88-98 Service Manuals
hatzie
Dec 15, 2018
13
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15
Replies
148
Views
254K
May 15, 2024
MurderYurFace
Sticky
Water Pump Relacement
Ginger
Dec 4, 2009
7
8
9
Replies
87
Views
86K
May 13, 2024
Utah York
Sticky
Let's get connected!!!
Scooterwrench
Oct 1, 2023
4
5
6
Replies
59
Views
7K
Apr 1, 2024
Scooterwrench
Sticky
TBI small block intake gasket replacement (PIC HEAVY)
someotherguy
Dec 25, 2022
3
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5
Replies
41
Views
15K
Feb 16, 2024
95OBSMan
Sticky
How to MarkVIII your OBS on a budget..!
monstar_est87
Apr 30, 2012
16
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18
Replies
171
Views
146K
Sep 23, 2023
Casey916
Sticky
Maintenance: RPO Code Database & Decoder
Greg
Dec 4, 2009
2
3
4
Replies
33
Views
50K
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
Views
160K
Jun 20, 2023
Illbedipped
Sticky
GMT400 History
Greg
Mar 16, 2010
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245
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330K
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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122K
Dec 9, 2022
mary7654
M
S
Sticky
Tune Up Parts Numbers
supjim12
Dec 22, 2009
2
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37
Views
66K
May 15, 2022
Erik the Awful
S
Sticky
ULTIMATE TBI mods stage 1
shelbyt.67
Jun 28, 2012
26
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28
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273
Views
331K
May 5, 2022
PlayingWithTBI
K
Cylinder Compression
katwood16
May 18, 2024
Replies
6
Views
247
Today at 4:40 AM
GoToGuy
I
95 Yukon 5.7 tbi no start... help me see what i'm missing!
importkillerrr
Yesterday at 10:22 PM
Replies
1
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55
Today at 4:28 AM
GoToGuy
K
No compression
katwood16
Yesterday at 10:53 PM
Replies
4
Views
101
Today at 3:41 AM
GoToGuy
Over heating.. I’m stumped!
wavesillusion
Tuesday at 1:39 PM
2
Replies
14
Views
454
Today at 2:44 AM
GoToGuy
5.7 Vortec intermittent long crank --> crank no start, backfires, clunking
slow_c1500
May 18, 2024
6
7
8
Replies
70
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3K
Today at 1:03 AM
slow_c1500
Fairly new AC system barely cools truck
hekg
Yesterday at 11:17 PM
Replies
0
Views
62
Yesterday at 11:17 PM
hekg
S
1993 Yukon crate motor hydraulic roller lifter cleaning and adjustment journey - (Solved)
scott2093
Feb 19, 2024
29
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31
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307
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17K
Yesterday at 10:37 PM
scott2093
S
Cylinder 1 and 5 misfire
Cherryred98
Monday at 3:48 PM
2
Replies
13
Views
377
Yesterday at 10:10 PM
Cherryred98
D
RE: An update to my V6 to V8 swap.
DeCaff2007
Thursday at 7:57 PM
2
Replies
10
Views
246
Yesterday at 10:00 PM
Road Trip
N
1995 V6 TBI Code 43 issues
Nick_R_23
Monday at 7:54 PM
2
Replies
11
Views
252
Yesterday at 9:42 PM
Nick_R_23
N
9
Power steering question..
98tahoe4dr
Wednesday at 11:08 PM
2
3
Replies
22
Views
510
Yesterday at 9:23 PM
1998_K1500_Sub
Redneck DoD
mpyusko
May 22, 2024
7
8
9
Replies
89
Views
4K
Yesterday at 8:26 PM
0xDEADBEEF
V
1988 350 TBI Uneven Idle?
Valdfur
Apr 14, 2024
Replies
6
Views
514
Yesterday at 8:17 PM
Valdfur
V
1995 Gmc sierra 5.7 TBI
95GM
Thursday at 11:44 PM
Replies
6
Views
159
Yesterday at 2:44 PM
PlayingWithTBI
Two fer one!
OlSmokie
Thursday at 11:00 AM
Replies
3
Views
154
Yesterday at 1:59 PM
OlSmokie
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Latest posts
Decided to build a garage. Now the fun begins.
Latest: South VA
26 minutes ago
The Garage
Do I have to use same ECM with same spider injectors
Latest: GoToGuy
Today at 5:09 AM
96+ Vortec Performance + Computer Swaps
Engine locked up?
Latest: GoToGuy
Today at 4:56 AM
Feedback, Help and Suggestions
Cylinder Compression
Latest: GoToGuy
Today at 4:40 AM
Engine Performance + Maintenance
95 Yukon 5.7 tbi no start... help me see what i'm missing!
Latest: GoToGuy
Today at 4:28 AM
Engine Performance + Maintenance
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