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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
40 minutes ago
Scottm
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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FiveO Bosch Blue Knight Injectors for the 7.4L????
kent
Feb 2, 2017
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1
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1K
Feb 2, 2017
88GMCtruck
S
1993 GMC C1500 New engine - fuel pump question.
SKFengineer
Jan 25, 2017
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2K
Feb 1, 2017
Chewy1576
Weak start
jw_96
Jan 31, 2017
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463
Jan 31, 2017
jw_96
305 to 350 vortec on 98 ecsb
silverado98
Jan 28, 2017
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6
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1K
Jan 31, 2017
streetperf
S
Trim between bumper and grille
jw_96
Jan 24, 2017
2
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Jan 31, 2017
deejaaa
D
S
alignment advice
smitty1
Jan 26, 2017
2
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Jan 31, 2017
Jorge6.5
Blown Engine. But What Happened
mitragorz
Jan 28, 2017
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Jan 30, 2017
mitragorz
Unhooking wiring harness from cab?
Brandon_
Jan 29, 2017
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407
Jan 30, 2017
someotherguy
383 on tbi
eric.s.t
Jan 14, 2017
2
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10
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5K
Jan 29, 2017
TylerZ281500
Leaking oil
dirtautoguy
Jan 29, 2017
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511
Jan 29, 2017
dirtautoguy
P
Heads
ProjectChummins
Jan 28, 2017
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5
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725
Jan 29, 2017
vic_v8
TPS question
BillK
Jan 28, 2017
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576
Jan 29, 2017
TylerZ281500
98 gmc 5.7 L vortec not running well
1998 slt z71
Jan 28, 2017
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298
Jan 28, 2017
1998 slt z71
Base Timing for 1994 TBI
Connor Fischer
Jan 3, 2017
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9K
Jan 28, 2017
L29Sub
350 tbi fueling with vortec heads
Connor Fischer
Jan 27, 2017
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671
Jan 27, 2017
SKFengineer
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