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6.5/6.2 High Performance Engine Modifications
High Performance Turbocharger and Engine Related Modifications Discussion Forum - Specific To The GM 6.2 & 6.5 Diesel Engine.
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6.5 Diesel Photo Thread
Snotrockett
Nov 5, 2011
25
26
27
524
275K
6 d ago
by
Dieselheat
Sticky
Engine weight
Injectorsaurus
Jan 29, 2019
4
6K
Apr 22, 2019
by
jnlperformance
Info:
Sticky
The 6.5L FAQ's... The Master List of Information and 6.5 Answers
knkreb
Nov 27, 2005
Locked
16
2M
Jul 15, 2015
by
Freddyack
Sticky
Rolling Coal & The 6.5
PrivatePilot
Sep 12, 2010
Locked
2
34
154K
Apr 2, 2012
by
PrivatePilot
Info:
Sticky
6.5 NEWBIES - **START HERE**
PrivatePilot
Sep 28, 2010
Locked
1
321K
Sep 28, 2010
by
PrivatePilot
Info:
Sticky
Diagnostic Checklist version 2.0 [10-2009]
knkreb
Aug 26, 2005
Locked
1
122K
Aug 26, 2005
by
knkreb
Ecu remap
Atko85
38 m ago
0
19
38 m ago
by
Atko85
12v Cummins into 93’ 6.5 questions.
Owen1115
8 h ago
1
71
5 h ago
by
Owen1115
Silent Air Compressor
scasanova
5 d ago
8
284
9 h ago
by
scasanova
O
oil cooler
over_boosted
3 mo ago
5
499
11 h ago
by
uniquediesel
B
Question:
Problem removing injector lines
Big Renwick
3 d ago
7
221
11 h ago
by
uniquediesel
Q
Oil pressure
quarryone
3 d ago
6
181
11 h ago
by
uniquediesel
J
Info:
PSA for GM-3 turbos: check your wastegate
johnH123
1 d ago
1
100
11 h ago
by
uniquediesel
Question:
Replace injectors?
gmanracer
5 d ago
2
28
567
13 h ago
by
gmanracer
Upper intake tourque
SUPRAPULLER
14 h ago
1
72
14 h ago
by
OkDually
D
Question:
Where to buy NV4500 tranny?
DieselGuy93
16 h ago
2
78
15 h ago
by
smdk2500
S
Rough start up idle
smdk2500
17 h ago
2
85
15 h ago
by
smdk2500
N
My First Diesel !!! I feel like a kid!!
Notorious
Nov 29, 2017
6
7
8
157
7K
21 h ago
by
Glagulator
S
Urgent:
Semi-emergency Need some assistance, Shop/tools in Jackson, MS
ssfarm
3 d ago
19
342
22 h ago
by
OkDually
Exhaust help!
gmanracer
8 d ago
2
3
40
970
1 d ago
by
Dadddyoh
E
Question:
1/4” drive plug located on rear driver side of engine, behind valley
Elias305
2 d ago
4
208
2 d ago
by
Elias305
J
Question:
transmission swap maybe?
jnicewarner
5 d ago
1
195
2 d ago
by
sportsman7
Top dead center reset
Atko85
2 d ago
3
150
2 d ago
by
OkDually
M
Looking for help... Stalling on right turns ?
MattBC
Jul 6, 2018
15
1K
3 d ago
by
redshift9
Plastic Nuts For Relay Cover?
redshift9
8 d ago
3
208
3 d ago
by
redshift9
R
Losing Power
Russell Taylor
4 d ago
2
138
3 d ago
by
dieselolds
K
Question:
New injection pump time?
kmagg
4 d ago
5
158
3 d ago
by
kmagg
S
Question:
Exhaust Leak
ssfarm
4 d ago
2
143
4 d ago
by
bk95td
Turbo side heat sheild pics
SUPRAPULLER
4 d ago
1
120
4 d ago
by
OkDually
6
6.5 4l80e out put speed sensor
64 6.5
6 d ago
6
260
5 d ago
by
64 6.5
Question:
6.5 TD Fuel Flow at RPM Idling/High Idle Mod
Stratosurfer
8 d ago
2
316
6 d ago
by
Stratosurfer
Just bought a 1994 K3500 Dually and Need a 6.5l. Any info on best options
ncrscorvette
6 d ago
4
267
6 d ago
by
OkDually
C
Question:
10mm Differential Bolts???
Chicagomike
9 d ago
12
471
6 d ago
by
57diesel
P
93 6.5 engine noise challenge...
presleyhome
2 mo ago
2
3
4
62
4K
6 d ago
by
Dadddyoh
6
Is this Stanadyne IP new or rebuilt?
65TDXpress
8 d ago
17
441
6 d ago
by
65TDXpress
F
Dorman PMD
foxden
7 d ago
16
442
7 d ago
by
dieselolds
Question:
brake problems
Jack64
19 d ago
5
322
7 d ago
by
nev
'95 3500HD
Injectorsaurus
2 mo ago
2
31
1K
7 d ago
by
OkDually
Question:
6.5L Diesel Engine
Parks6.5L NAD
8 d ago
3
212
8 d ago
by
dieselolds
Question:
6.5L Fuel filter
Parks6.5L NAD
8 d ago
1
144
8 d ago
by
OkDually
Info:
Rock Auto Having a Wholesaler Closeout Sale
Dadddyoh
10 d ago
2
296
8 d ago
by
presleyhome
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6.5L Diesel Engine
Discuss the 6.5 GM diesel engine & associated components. Automatic transmission questions & problems belong in the 4L80/85 - 4L60E - 6L90 Transmission Forum
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