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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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1.2K
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19K
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S
99 L29 454 build
24 minutes ago
Scottm
LSX + Carb Swaps
This section is for info on LSX or carburetor swaps into the OBS trucks.
Threads
634
Messages
7.9K
Threads
634
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7.9K
5.7 TBI to 5.3 LM7
Yesterday at 6:36 PM
Schurkey
Exhaust
Anything exhaust - from headers cats and pipes to tips.
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13.9K
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13.9K
New Y-pipe and cat for the old girl
Today at 5:53 PM
L31MaxExpress
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Hey guys need some info/help on motors
FIREBALL 94
Mar 18, 2017
Replies
8
Views
877
Mar 22, 2017
retorq
R
T
What are ya'll getting for mpg?
Trenton
Feb 2, 2017
6
7
8
Replies
78
Views
37K
Mar 22, 2017
kingleonidasll
Best way to fool O2 sensor
jw_96
Mar 8, 2017
2
3
Replies
25
Views
21K
Mar 20, 2017
big green96
T
Possible misfire, or battery issue, or gremlins.
thesameguy
Mar 9, 2017
2
Replies
14
Views
4K
Mar 20, 2017
thesameguy
T
A
Is this normal? Slight vibration idling in Park
andfern97
Mar 19, 2017
Replies
4
Views
2K
Mar 20, 2017
andfern97
A
D
NBS 4l60e into our OBS trucks
dowsewashere
Mar 19, 2017
Replies
8
Views
13K
Mar 19, 2017
shovelbill
R
1995 TBI connector by engine....need help identifying
rsparhawk
Mar 19, 2017
Replies
4
Views
984
Mar 19, 2017
rsparhawk
R
rebuild or buy new engine
Zach Grossman
Feb 27, 2017
Replies
6
Views
2K
Mar 19, 2017
Hipster
Vortec Heads, need help
J Thomas
Jan 26, 2017
2
3
Replies
27
Views
6K
Mar 19, 2017
J Thomas
Backfiring through exhaust when engine is warm
Breakdown
Jan 29, 2017
2
3
4
Replies
33
Views
9K
Mar 19, 2017
Breakdown
D
Rough Idle and bouncing tach while coasting.
dhumboldt12
Mar 17, 2017
Replies
2
Views
2K
Mar 18, 2017
C30454
C
M
98 K1500
Markgyver
Mar 5, 2017
Replies
4
Views
1K
Mar 17, 2017
Markgyver
M
B
305 motor questions
Blockbeata09
Mar 17, 2017
Replies
1
Views
388
Mar 17, 2017
df2x4
T
l98 swap in k1500
tannerezell077
Mar 13, 2017
Replies
7
Views
3K
Mar 15, 2017
tannerezell077
T
97 oil cooler lines need replacing
Diego0123005
Mar 14, 2017
Replies
3
Views
1K
Mar 14, 2017
Black_cirrus
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