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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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S
L31 Extreme Budget Build
50 minutes ago
Supercharged111
LSX + Carb Swaps
This section is for info on LSX or carburetor swaps into the OBS trucks.
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644
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8K
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644
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Welp, got a doner.
Wednesday at 6:45 PM
L31MaxExpress
Exhaust
Anything exhaust - from headers cats and pipes to tips.
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Weird Black Soot in my Exhaust
Yesterday at 6:27 AM
DerekTheGreat
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'Hypothetical' Swap BBC with Crate BBC
bobby v
Jul 25, 2019
Replies
4
Views
665
Jul 29, 2019
MIHELA
'99 Vortec 305 runs rich/performance improvements
Old Blue
Nov 3, 2017
Replies
6
Views
2K
Nov 8, 2017
pro17
P
D
'99 K2500 Suburban violent drivetrain jolting at highway speeds
dinman
Apr 13, 2021
Replies
4
Views
2K
Apr 18, 2021
thegawd
'99 7.4L, what is this sensor?
jcwren
Sep 14, 2022
2
3
4
Replies
31
Views
4K
Sep 28, 2022
454cid
F
'98 Vortec into a '88 K2500, retaining the TBI
Firewood truck
Feb 26, 2024
Replies
0
Views
899
Feb 26, 2024
Firewood truck
F
'98 Tahoe, P0300, P0304, P0151, P0174
ChrisAU
Jul 30, 2013
2
Replies
11
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6K
Aug 5, 2013
ChrisAU
'98 L-29 INJECTOR BLOW-OUT
smokymtn65
Oct 1, 2021
Replies
8
Views
1K
Oct 7, 2021
smokymtn65
J
'98 K2500 surging at idle, can't figure it out
JLeather
Dec 3, 2017
3
4
5
Replies
47
Views
30K
Apr 5, 2018
Panner99
P
'98 K1500 Z71 5.7L Vortec Overheating... Help?
ChromedZ71
Jan 7, 2015
2
Replies
11
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6K
Jan 13, 2015
Rusty Nail
'98 k1500 4.3l Vortec | Terrible Sounds!
strikk
Sep 15, 2013
Replies
4
Views
1K
Sep 16, 2013
USAF Long
B
'98 K-3500 with 454 wont start, has spark and fuel pressure.
Blue66
Aug 24, 2013
2
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12
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9K
Sep 15, 2013
glfirefighter144
'98 Hard to Start
AFBud1998
Jan 26, 2015
2
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14
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2K
Jun 7, 2015
AbramF_496
'98 Denali Vortec
Tyler09
Oct 11, 2011
Replies
8
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2K
Oct 12, 2011
CodyB
'98 ALL SYSTEMS DEAD
smokymtn65
Jul 26, 2022
2
Replies
18
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2K
Jul 28, 2022
Schurkey
L
'98 5.7l p1345 fix without scan tool
LunchBoxFab
May 2, 2023
Replies
8
Views
5K
Aug 28, 2023
Jacobchevys
J
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Latest posts
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96+ Vortec Performance + Computer Swaps
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