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
Messages
19.1K
Threads
1.2K
Messages
19.1K
M
12200411 PCM swap for 1996 to 2000 GMT400 trucks

LSX + Carb Swaps

This section is for info on LSX or carburetor swaps into the OBS trucks.
Threads
647
Messages
8K
Threads
647
Messages
8K
Erik the Awful
Tbi 350 swap to zz4 350

Exhaust

Anything exhaust - from headers cats and pipes to tips.
Threads
1.1K
Messages
13.9K
Threads
1.1K
Messages
13.9K
Schurkey
1997 C1500 5.7 Exhuast manifold 3 bolt flange help
asolek88
Help me choose headers
Replies
9
Views
2K
6789olds
6
Fobroader
Am I blind???
Replies
8
Views
2K
1990GMCSIERRA
1990GMCSIERRA
9
carbed to tbi 454
Replies
5
Views
1K
FastOrange
FastOrange
Swims350
what are some signs of a cracked head or valve issues?
2
Replies
10
Views
4K
Swims350
Swims350
B
first post: 94 suburban no power to fuel pump fuse and relay not clicking
2
Replies
13
Views
24K
BHBurban
BHBurban
UrbanOffroad215
5.7L Vortec Injector housing and Manifold
2
Replies
11
Views
19K
shock
S
Bigg G
1995 TBI 350 EGR Solenoid Question
Replies
3
Views
2K
94 Silverado
94 Silverado
C
truck not burning gas fast enough
2
Replies
10
Views
3K
1990GMCSIERRA
1990GMCSIERRA
E
PO420 code
Replies
6
Views
3K
1990GMCSIERRA
1990GMCSIERRA
Ol'Rover
ECM-I 20A blown
Replies
8
Views
3K
Ol'Rover
Ol'Rover
asolek88
Nitrous Solenoids Locations
Replies
0
Views
714
asolek88
asolek88
barebones 1500
Why can't i do this????
Replies
6
Views
2K
daddy_dandy
D
1990GMCSIERRA
Ok I Need Help
2 3
Replies
25
Views
4K
1990GMCSIERRA
1990GMCSIERRA
1500SS
Braking woes
Replies
4
Views
1K
1500SS
1500SS
97c1500
5.7 Vortec Noise
2
Replies
11
Views
4K
97c1500
97c1500
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