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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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The Official Vortec 454 Info thread
Today at 8:39 AM
Erik the Awful
LSX + Carb Swaps
This section is for info on LSX or carburetor swaps into the OBS trucks.
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644
Messages
8K
Threads
644
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8K
Welp, got a doner.
Yesterday at 4:50 PM
0xDEADBEEF
Exhaust
Anything exhaust - from headers cats and pipes to tips.
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13.9K
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1.1K
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13.9K
1997 C1500 5.7 Exhuast manifold 3 bolt flange help
Yesterday at 12:25 PM
Scooterwrench
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In cap coil ? or not...
Ed_P
Apr 17, 2018
Replies
4
Views
461
Apr 17, 2018
884x4310ci
8
E
454 vortec l29 Vacuum diagram
Evan Frericks
Apr 17, 2018
Replies
1
Views
10K
Apr 17, 2018
Christian Steffen
Dyno Results - 355 - for my ole Stepside RC
Ed_P
Apr 7, 2018
2
3
Replies
22
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3K
Apr 15, 2018
shovelbill
7.4L Vortec Fuel Pressure Regulator
Tom P
Feb 5, 2018
2
Replies
13
Views
19K
Apr 15, 2018
Tom P
S
1998 454 Fuel Issue
SamH
Feb 19, 2018
Replies
7
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5K
Apr 15, 2018
my name is alex
C
What is this wire?
Chris253
Mar 26, 2018
Replies
4
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1K
Apr 13, 2018
Chris253
C
K1500 engines from GM include 454, and other related questions
RokRoland
Apr 3, 2018
2
3
4
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30
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6K
Apr 12, 2018
Jay33089
So how much of a bi*ch is it to replace and exhaust manifold gasket?
ChrisAU
Mar 27, 2012
2
3
4
Replies
30
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27K
Apr 12, 2018
LoudnLifted88
E
88 C1500 5.7L white smoke in exhaust
ericinga
Mar 23, 2018
2
3
Replies
20
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10K
Apr 12, 2018
NightRunner
E
Complete loss of 12V power......
ericinga
Apr 9, 2018
Replies
8
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2K
Apr 12, 2018
ericinga
E
W
99` Tahoe and the infamous CEL
Weston Graham
Feb 18, 2018
2
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15
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2K
Apr 11, 2018
jsfrmsj
J
2wd Oil Line Delete
Rock Hard Concrete
Apr 9, 2018
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6
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2K
Apr 11, 2018
98vortec
9
J
p0300 multiple misfire
jsfrmsj
Mar 6, 2018
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9
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7K
Apr 10, 2018
jsfrmsj
J
found a plug
tim tanner
Mar 29, 2018
Replies
7
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1K
Apr 10, 2018
Eveready
4
High Flow Cat recommendations
454Suburban
Apr 9, 2018
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2
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3K
Apr 9, 2018
Big D
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