Chevy/GMC Truck and Duramax Turbo Diesel Forum Discussion of General Topics related to All Chevy and GMC Trucks as well as the Diesels in them
View Poll Results: What kind of Duramax
LB7
31.69%
LLY
33.10%
LBZ
26.06%
LMM
7.75%
LG5
1.41%
Planning on buying the new 4.5L Dmax
1.41%
Multiple Choice Poll. Voters: 142. You may not vote on this poll

What Kind Of Duramax Do You Have

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  #11  
Old 07-21-2008, 02:16 PM
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2003 LB7 Too many mods to list.

I would love to have the new 4.5l Duramax. Lets wait and see what happens to fuel prices first.
 
  #12  
Old 07-21-2008, 03:02 PM
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The ONE AND ONLY LBZ... a few mods.. 4" turbo back, no kitty, bullydog with Crazy Larry, Airbox mod.

Coming this fall : SC IV, Cognito Front end parts and AMSOIL.

And Yes I am buying the 4.5L when it comes out.. the wife is DYING for more power..
 
  #13  
Old 07-21-2008, 04:58 PM
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Originally Posted by 2500HeavyDuty
odd, did you have any trouble tuning it with efi
Yea at first i couldnt figure out how to make it work to get the timing right with the fuel and boost times but after i got deep into all of iti figured out somehow (dont remember) how to change what turbo you had and then i think i had to get on the internet and download specs for it and after that the truck ran great. Pulled really hard and sounded like an LB7 but had the block of an LBZ.... that got the diehards scratchin their heads.
 
  #14  
Old 07-21-2008, 05:05 PM
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LBZ wit a few extra parts
 
  #15  
Old 07-21-2008, 09:35 PM
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05 LLY w/a pipe, lost cat, and modified intake. Running PPE for now. Getting ready to switch to EFI. Need to get the tranny done and beef the front end, and then swap turbo.
 
  #16  
Old 07-21-2008, 10:00 PM
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I have a 2004.5 LLY CC SB ex 4x4 but its been changed a little from stock. Also have a 2005 exact same configuration and is about to have Superlift 6" and Fab Four Front and back bumpers with Warn 12 1/2 on the front, with 20x10 Rims with MT 35's x 13.5. Has a PPE Hot+2 but will be getting a Supercharger on it as soon as my other one is sorted. The 2004 has 33,000 miles and the 2005 has 38,000 miles. I love them both
 
  #17  
Old 07-26-2008, 04:46 PM
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well its a 04.5 LLY and most everything is in my sig but i am hoping this Dec after i graduate i will be able to give myself a Grad gift of Twins for the truck
 
  #18  
Old 07-26-2008, 04:49 PM
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mpi twinz?
 
  #19  
Old 09-29-2008, 09:59 AM
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what in the hell is an LG5? and the 4.5 is an LMK for information sake
 
  #20  
Old 09-29-2008, 10:15 AM
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Originally Posted by DunesRunner08
what in the hell is an LG5? and the 4.5 is an LMK for information sake

Here ya go Bill

https://www.dieselbombers.com/durama...tml#post153444

Originally Posted by DieselMinded
The LG5, or 6H, is an inline-six cylinder 7.8 L (476 cu in) engine. It is a commercial-grade vehicle engine and is currently operating in over 300,000 Isuzu and GM-built trucks, including the H-Series and T-series vehicles. It is mated to the Allsion 3000 and 3500 Series transmissions.

The following trucks use the LG5:
  • Chevrolet T-Series
  • Isuzu F-Series
  • Isuzu H-Series
Specifications

  • Engine description: 7.8L I6 Turbodiesel; 6H
  • Displacement: 7.8L / 475.9 in³
  • Bore and stroke: 4.53 / 4.92 (in.)
  • Block / Head: Cast iron / Cast aluminum
  • Aspiration: Turbocharged & Intercooled
  • Valvetrain: OHC 4-V
  • Compression: 16.0:1
  • Injection: Direct; Denso Common-rail
  • Power / Torque: 200 hp (150 kW) @ 2,200 rpm / 520 lb·ft (705 N·m) @ 1,450 rpm (Standard)
  • Power / Torque: 275 hp (205 kW) @ 2,200 rpm / 860 lb·ft (1,166 N·m) @ 1,450 rpm (High-Torque Version)

 


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