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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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Want to Learn To Tune - Need help getting started
Today at 12:01 PM
BeXtreme
LSX + Carb Swaps
This section is for info on LSX or carburetor swaps into the OBS trucks.
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635
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Threads
635
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Z
Intake swap
Monday at 9:24 AM
zach_rabey
Exhaust
Anything exhaust - from headers cats and pipes to tips.
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A
Iso long tube headers
Monday at 7:44 PM
Adyy
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Repairing ac system
Zack8
Thursday at 10:11 AM
2
3
Replies
27
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1K
Yesterday at 5:41 PM
1998_K1500_Sub
Whining alternator on my ‘94
TruckerDad23
Oct 30, 2023
2
3
Replies
29
Views
4K
Yesterday at 5:05 PM
Vettepilot
V
Am I underpowered?
twebuh
Apr 10, 2024
7
8
9
Replies
87
Views
4K
Yesterday at 3:09 PM
Schurkey
1997, 5.7, Misfire at idle, cylinder 2+5
superrod29
Dec 16, 2023
Replies
4
Views
878
Yesterday at 2:24 PM
superrod29
K
Truck not turning over
Kevin99
Thursday at 7:39 AM
2
3
Replies
26
Views
905
Yesterday at 1:47 PM
Schurkey
I’m a DA…what maintenance have you screwed up?
Reega
Sunday at 9:25 PM
3
4
5
Replies
42
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2K
Yesterday at 11:53 AM
11bravo
1
H
TBI flooding when on a full tank
highrpmsbc
Apr 30, 2024
Replies
8
Views
551
Yesterday at 11:32 AM
95burban
1999 L31 Engine with nearly 260k, Timing chain plus what else?
redfishsc
Mar 22, 2024
2
3
4
Replies
33
Views
1K
Yesterday at 9:57 AM
1998_K1500_Sub
Code 32 with a high flow exhaust.
Nick88
Apr 23, 2024
3
4
5
Replies
43
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2K
Yesterday at 8:49 AM
Nick88
Intake stuff
Ole2tone
Yesterday at 7:59 AM
Replies
1
Views
69
Yesterday at 8:35 AM
movietvet
Vortec 454 Injectors
454C2500Longbed
Feb 5, 2024
5
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7
Replies
61
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5K
Monday at 9:49 PM
df2x4
I need mental help!!! What should I do?
Maddmatt
Apr 23, 2024
2
3
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25
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1K
Monday at 9:21 PM
Maddmatt
M
My GMC stopped running
meshal
Jul 13, 2023
2
Replies
12
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1K
Monday at 8:11 PM
meshal
M
S
Thermostatic valves for the TBI Intake
Striker1423
May 1, 2024
2
3
4
Replies
34
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1K
Monday at 8:08 PM
L31MaxExpress
Bipolar Misfire on 1997 Vortec 5.0
shaneroze
Sunday at 11:45 AM
Replies
2
Views
113
Monday at 7:24 PM
Schurkey
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