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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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99 L29 454 build
Today at 6:18 PM
Keeper
LSX + Carb Swaps
This section is for info on LSX or carburetor swaps into the OBS trucks.
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How To: Ditch EFI and keep TBI PCM for 4L60E Control.
Today at 2:04 PM
tayto
Exhaust
Anything exhaust - from headers cats and pipes to tips.
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Long tube headers
Today at 12:14 PM
EKOBS
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Danger, high voltage.
glikegerardo
Aug 5, 2017
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1K
Aug 6, 2017
skylark
C
NO SPARK vortec 5.7 ran fine then wouldnt start!
chris kesl
Jul 31, 2017
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Aug 6, 2017
chris kesl
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D
TV Cable replacement?
dhumboldt12
Jul 31, 2017
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1K
Aug 6, 2017
c1500deathtrap
C
Help - Weird Brake Issue - Unsolicited Rear Brake Lock Up
m002922
Jul 11, 2017
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4K
Aug 5, 2017
east302
1996 vortec 5.7l gas mileage
Emanuel
Oct 5, 2016
2
3
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5K
Aug 4, 2017
gstubbz
K
350TBI extreme hesitation under initial acceleration
Ksanete
Oct 7, 2016
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3K
Aug 4, 2017
redfishsc
V
98 sierra misfires at a loss
vince_454
Aug 2, 2017
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Aug 4, 2017
redfishsc
J
More Mpg with a tuner?
joey willet
Aug 3, 2017
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6
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1K
Aug 3, 2017
TylerZ281500
Deceleration Stumble
Beeffajitas
Jul 30, 2017
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2
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1K
Aug 3, 2017
Beeffajitas
9
Max Operating Temp before Ka-clunk
98K35Ox
Jul 30, 2017
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4
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Aug 1, 2017
Biggershaft96
C
98 tahoe dies occasionally when hot outside
cochino12
Jul 25, 2017
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732
Aug 1, 2017
mistaake
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Garage decor!
andfern97
Jun 20, 2017
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Aug 1, 2017
mars2878
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3/4 ton exhaust on 99 two door tahoe question
smitty1
Jul 31, 2017
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817
Aug 1, 2017
slowburb
B
98 k2500 new fuel pump issue
BH2500
Jul 31, 2017
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1
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674
Jul 31, 2017
east302
400hp/400tq goal in CA. Swap or modifications?
jollyjerry
Jul 27, 2017
2
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Jul 31, 2017
Supercharged111
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