Vortec 4.2L I-6

DIY Fixer
What you guys think of this Kooks Exhaust Header?
Replies
42
Views
7K
therealsethallen
therealsethallen
Gearheadvr4
What years are interchangeable on the I6 4.2 engine?
Replies
7
Views
14K
Tiggerr
Tiggerr
Flyersguy
what year engine(s)
Replies
12
Views
2K
Flyersguy
Flyersguy
J
What year 4.2 engines are direct replacement
Replies
16
Views
4K
Mooseman
Mooseman
B
What would be causing this?
Replies
5
Views
1K
CaptainXL
C
A
what will I have to do to use an 07 4.2 liter engine in my 05 trailblazer
Replies
2
Views
609
Mooseman
Mooseman
B
what trips the "STOP ENGINE" display?
Replies
31
Views
2K
bspurloc
B
gmcman
What tool to compress valve springs
Replies
14
Views
5K
mrrsm
mrrsm
jmonica
What to wrap? If anything?
Replies
3
Views
1K
jmonica
jmonica
1
what thermostat to use part 2
Replies
5
Views
900
The_Roadie
The_Roadie
1
what thermostat to use
Replies
4
Views
1K
1987 mustang
1
seadeeare
What the heck is this?
Replies
6
Views
1K
seadeeare
seadeeare
6716
What sort of heat rating does rubber trans cooler line have?
Replies
4
Views
737
Mooseman
Mooseman
gmcman
What size threads or adapter to check oil pressure at sending unit
Replies
20
Views
59K
limequat
limequat
jeffro312
What Should I Replace at 175k
Replies
11
Views
1K
TollKeeper
TollKeeper
R
What maintenance should I catch up with?
Replies
7
Views
1K
Revans381996
R
Lipstick-n-Lugs
What long term damage with no installed PCM Fuse(s) cause, if any?
Replies
6
Views
3K
limequat
limequat
RyanEAS
  • Poll
What kind of MPG do y'all get?
Replies
15
Views
1K
littleblazer
littleblazer
B
What is this rear rotted beam for? and spare repair?
Replies
24
Views
2K
bspurloc
B
Buloushie
What is this plug
Replies
12
Views
2K
cace68
C
T
what is this part
Replies
8
Views
2K
Gunner
G
0
What is this hose for?
Replies
5
Views
923
04TrailblazerLT
0
J
What is this connector near the AC compressor? (Plus oil pickup tube gasket fiasco.)
Replies
7
Views
1K
jcloninger
J
S
What is this connection? (top front of Intake Manifold)
Replies
14
Views
21K
SB_Pete
S
B
what is this clip from?
Replies
10
Views
6K
bspurloc
B
B
What is the best way to test fuel injectors on our motor?
Replies
17
Views
4K
CaptainXL
C
Royalwapiti
What is the AIR system?
Replies
13
Views
1K
HARDTRAILZ
HARDTRAILZ
B
What is stock exhaust size on the i6?
Replies
16
Views
16K
Cable810
Cable810
E
What is our redline?
Replies
14
Views
6K
kardain
kardain
1
what is normal operating temperature
Replies
6
Views
2K
The_Roadie
The_Roadie
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