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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
99 L29 454 build
Friday at 10:54 PM
Scottm
LSX + Carb Swaps
This section is for info on LSX or carburetor swaps into the OBS trucks.
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634
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7.9K
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634
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How To: Ditch EFI and keep TBI PCM for 4L60E Control.
Yesterday at 6:24 PM
L31MaxExpress
Exhaust
Anything exhaust - from headers cats and pipes to tips.
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Long tube headers
Friday at 12:14 PM
EKOBS
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Fan shroud issues with new alumarad.
kemo sabe
Mar 8, 2013
2
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14
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6K
Dec 29, 2014
camoburban
C
Poll
454s - What kind of MPG are you getting?
my name is alex
Dec 19, 2014
2
3
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23
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6K
Dec 28, 2014
my name is alex
How do I flush my cooling system?
98sierra4x4
Dec 27, 2014
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3
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2K
Dec 28, 2014
98sierra4x4
Whats a good replacement radiator?
98sierra4x4
Dec 21, 2014
Replies
6
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1K
Dec 28, 2014
98sierra4x4
What do I need to replace my cracked radiator?
98sierra4x4
Dec 28, 2014
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0
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497
Dec 28, 2014
98sierra4x4
Changed fuel pump and sending unit. Now no fuel gauge....
TerryH
Dec 27, 2014
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2
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833
Dec 28, 2014
twomanymontes
S
Loose belt?
Smitty1021
Dec 23, 2014
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5
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1K
Dec 24, 2014
twomanymontes
E
Engine Compartment light
eg30.06
Dec 23, 2014
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8
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2K
Dec 24, 2014
eg30.06
E
9
5.7 vortec issues, any ideas?
97Obs
Dec 23, 2014
Replies
1
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654
Dec 24, 2014
skylark
Where is my coolant going?
98sierra4x4
Dec 20, 2014
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8
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854
Dec 23, 2014
98sierra4x4
L
New Motor for the 1994 GMC Yukon
lvz2ryd
Dec 23, 2014
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4
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864
Dec 23, 2014
96C1500
High idle help.
kidd666
Dec 1, 2014
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1K
Dec 22, 2014
kidd666
Need help finding a new radiator
A_RYK
Oct 27, 2014
2
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14
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2K
Dec 22, 2014
89-Z71
Oil pressure
98sierra4x4
Dec 21, 2014
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2
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589
Dec 21, 2014
98sierra4x4
W
1997 yukon walbro 255
WETPAINTYUKON
Dec 21, 2014
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1
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714
Dec 21, 2014
Big2500Red
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