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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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19K
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96/97 and 98/99 PCM differences or compatibility
12 minutes ago
fancyTBI
LSX + Carb Swaps
This section is for info on LSX or carburetor swaps into the OBS trucks.
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637
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7.9K
Threads
637
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F
Engine swap?
Yesterday at 2:08 PM
Feral peasant
Exhaust
Anything exhaust - from headers cats and pipes to tips.
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Dual exhaust question.
Thursday at 1:10 PM
Nick88
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Tech 2 - What does it do?
studigggs
Apr 19, 2019
2
3
Replies
22
Views
21K
May 19, 2019
studigggs
J
00 K2500 oil cooler line ( cooler side ) o-ring trouble
JoePro
May 17, 2019
Replies
7
Views
11K
May 19, 2019
hatzie
Radiator trans cooler question
94SL
May 7, 2019
Replies
8
Views
4K
May 19, 2019
94SL
S
Replaced entire fuel system from the filter back. Now no start.
shift5
May 9, 2019
2
3
Replies
25
Views
3K
May 19, 2019
shift5
S
HD cooling?
GMC GIANNI
May 16, 2019
Replies
6
Views
2K
May 18, 2019
GMC GIANNI
S
Water Neck Spacer Installation
Sortasuave
May 13, 2019
Replies
6
Views
3K
May 18, 2019
c1500deathtrap
C
C
Oil pans?
c1500deathtrap
May 18, 2019
Replies
0
Views
520
May 18, 2019
c1500deathtrap
C
B
Strange Noise
Boston71
May 17, 2019
Replies
0
Views
355
May 17, 2019
Boston71
B
Water pump
GMC GIANNI
May 16, 2019
Replies
3
Views
416
May 16, 2019
GMC GIANNI
Do I have a bad head gasket?
Jerryred94silvy
May 6, 2019
Replies
9
Views
3K
May 16, 2019
xx94Z71xx
F
94 GMC K2500 with Fi-Tech EFI
Flextx500
Apr 19, 2019
2
Replies
17
Views
4K
May 16, 2019
Dubs
Aluminum Radiator with Windstar E-fan Questions...
RichLo
Apr 30, 2019
2
3
Replies
22
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10K
May 15, 2019
RichLo
What's this plug
Kyle89
May 10, 2019
Replies
9
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1K
May 14, 2019
xx94Z71xx
Loose wire under engine
evilunclegrimace
May 9, 2019
2
Replies
10
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2K
May 13, 2019
evilunclegrimace
Timing Question for Aftermarket Cam.
xx94Z71xx
May 12, 2019
Replies
3
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3K
May 13, 2019
xx94Z71xx
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