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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.
Threads
644
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8K
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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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13.9K
1997 C1500 5.7 Exhuast manifold 3 bolt flange help
Yesterday at 12:25 PM
Scooterwrench
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Blew the 400 up
Deadman walking
Dec 6, 2022
9
10
11
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108
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10K
May 6, 2023
Moleman
M
Fun on a budget- My 96 Sierra 2500 454
454C2500Longbed
Feb 6, 2024
9
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11
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107
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7K
Apr 12, 2024
454C2500Longbed
I'm Gonna Burn It So It Can Go to Hell Where it Belongs
ChrisAU
Jul 2, 2012
9
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11
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106
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14K
Jul 17, 2012
Devs93
D
Locked
Strange Oil issue
GMC1994K1500SierraSL
Feb 22, 2014
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106
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9K
Feb 26, 2014
sewlow
Oil Choice
1994Shy
Dec 28, 2021
9
10
11
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106
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13K
Jan 8, 2022
Anthony Ray
A
Putting a Caprice engine (L05-7) into a 92 g30 van (has L80e trans)
Danboquist
Jan 9, 2024
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106
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Feb 5, 2024
Danboquist
Procharger
2drXmobb
Jun 10, 2021
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105
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17K
Aug 10, 2023
Supercharged111
S
Help with Carb on computer truck (now wont start at all)
TacosnBeer
Nov 28, 2020
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104
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9K
Dec 28, 2020
TacosnBeer
D
Piston ring install issues.
DeCaff2007
Apr 8, 2023
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9K
May 11, 2023
DeCaff2007
D
1
L31 intake swap-I am actually doing it not a question.
1998regcab
Jan 9, 2015
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Apr 17, 2020
Preston Dawkins
P
99+ LS1 PCM swap into OBS GMT400 trucks/SUV's
hquick
Dec 24, 2009
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38K
Mar 28, 2018
sayso
J
Help, cylinder misfire, rough idle, significant power loss
JrsK1500
Jun 1, 2012
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102
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27K
May 5, 2013
dexshaw
7.4L MAF Issue?
Tom P
May 1, 2017
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102
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26K
Jul 5, 2017
Christian Steffen
S
At my wits end.. Looking for any idea.
Shane Dyer
Jun 6, 2019
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101
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28K
Aug 21, 2021
tsr2185
Dies in gear when throttle applied
92GMCK2500
May 7, 2023
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101
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9K
Jul 13, 2023
92GMCK2500
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