TheDieselPage.com Forums
 
The Diesel Page Forums

2020 - TDP's 24th Anniversary
What's New | Feature Articles | Product Reviews | Member's Area | Free Forum Registration
Duramax 6600 Diesel Page | Advertiser's Section | Classified Ads | The Diesel Page - Publications


Go Back   TheDieselPage.com Forums > The Diesel Page Forums > 6.5L Turbo Diesel - Tech Support - Troubleshooting - Performance

6.5L Turbo Diesel - Tech Support - Troubleshooting - Performance 1992-00 6.5L Turbo Diesel - Welcome to the Internet's first discussion forum for the 6.5L diesel engine. Tips on performance, upgrades, cooling, fuel economy, troubleshooting and more.

Reply
 
Thread Tools Display Modes
  #1  
Old 09-24-2019, 09:58 PM
Aftermath Aftermath is offline
Enthusiast
 
Join Date: May 2014
Location: us, ga
Posts: 166
Default Military 6.5 information needed

So I have a buddy that just acquired (10) Complete Military 6.5 engines. (5) Center mount Turbo and (5) Non Turbo. He told me that all are under 10k miles. Run time unknown. Asking $1k each but will package a better deal. I'm not sure if any are Optimizers or not. I'll need to read block codes.

He's asked me to invest and the plan would be for me to resell. He also lives 6 hours away from me. I am planning to visit him with my trailer, but only staying long enough to buy or not, lunch, then leave for home. He said these are 90's to a 2000 he thinks. That's all the info I have and can get until I arrive on site.

So here's my questions:
- Are the earlier military 6.5's the same as the non military?
-What should I look for?
-Are the heads, and pumps different on these engines?

I'm planning the trip to leave in about a week.

I wont have any time to post and respond as I believe I will only be on site for a few hours at most. I will need to make decisions quite quickly and load and go or not.

I need as much info as possible to hopefully make good decisions.

All thoughts and suggestions are greatly appreciated.

Thanks in advance
Reply With Quote
  #2  
Old 09-24-2019, 10:56 PM
ronniejoe ronniejoe is offline
Enthusiast
 
Join Date: Nov 2002
Location: Martinsville, IN
Posts: 3,146
Default

The center mount turbo engines have different heads than the pickup turbo engines. The bolt holes in the heads for the intake manifold go in vertically on the HMMWV engines versus perpendicular to the face on the pickup engines. The intake manifold is significantly different as well. The blocks are drilled at the rear of the vee for oil passages and turbo mounting.

These can be used in trucks by swapping heads, intake manifolds, and plugging the oil passages for the turbo. I think the front oil passage for the side mount turbo has a plug in it on the military center mount engines. Check that.

I've not dealt with the NA military engines to know if they're different.

On edit:

If they are 2000 or older, they won't be Optimizers. GM was still making them at that time. I have two 2000 castings (had a third, but it cracked in the main webs) which are GM blocks. GEP came out with the Optimizer after they took over production.
__________________
Ron
1995 K2500 Suburban 8600 GVWR 6.5TD towing 32' 1999 Wilderness 31G GCVW 16,300+ lb.
KD 18:1 pistons with KD splayed mains.

Last edited by ronniejoe; 09-24-2019 at 10:58 PM. Reason: Add info
Reply With Quote
  #3  
Old 09-25-2019, 09:15 PM
Aftermath Aftermath is offline
Enthusiast
 
Join Date: May 2014
Location: us, ga
Posts: 166
Default

Gotcha

I guess it's hard to make sense out of buying just the short block for $1k Not sure about selling the parts and the market for that. Sounds like a headache unless I can find an Optimizer in the bunch.

Hmmm...
Reply With Quote
  #4  
Old 09-26-2019, 07:52 AM
arveetek's Avatar
arveetek arveetek is offline
Moderator-Towing Forum
 
Join Date: Oct 2001
Location: Granby, Missouri, USA
Posts: 2,788
Default

Personally, I think the asking prices are too high. I wouldn't spend that much for unknown condition 6.5L's. I'm thinking half of that at the most. Military "take out" engines typically means there were removed for a reason.

Casey
__________________
1995 K1500 Tahoe 2 door, 6.5LTD, NP241, 4L80E, 3.42's, 285/75R16 BFG K02's; Kennedy OPS harness, gauges, Quick Heat plugs, and TD-Max chip; Dtech FSD on FSD Cooler; vacuum pump deleted, Turbo Master, 3.5" Kennedy exhaust, F code intake, '97 air box; dual t/stats, HO water pump, Champion radiator; Racor fuel filter; 357K miles and running strong!
Reply With Quote
  #5  
Old 09-26-2019, 08:19 AM
DmaxMaverick's Avatar
DmaxMaverick DmaxMaverick is offline
Administrator
 
Join Date: Apr 2001
Location: CA
Posts: 12,628
Arrow

Quote:
Originally Posted by arveetek View Post
Personally, I think the asking prices are too high. I wouldn't spend that much for unknown condition 6.5L's. I'm thinking half of that at the most. Military "take out" engines typically means there were removed for a reason.

Casey
I'll add to that:
Despite claims by some sellers, wheeled vehicle engines are NEVER replaced as a matter of maintenance cycles. Quite simply, they run them until they quit, or experience issues indicating inevitable failure. HMMWV's, CUCV's, etc. are not airplanes or turbine powered tanks.

I agree, sight unseen and unknown condition engines, especially military origin, are worth no more than their scrap value. I wouldn't negotiate anything above that.
__________________
1985 Blazer 6.2
2001 GMC 2500HD D/A
2014 Chevy Cruze Diesel - Fabulous car, no problems at all, but sold Nov. 2016 @ 55K miles.
dmaxmaverick@thedieselpage.com
Reply With Quote
  #6  
Old 09-26-2019, 08:28 AM
Aftermath Aftermath is offline
Enthusiast
 
Join Date: May 2014
Location: us, ga
Posts: 166
Default

Wow, thanks y'all. I had a completely different opinion before this post
Reply With Quote
  #7  
Old 09-26-2019, 04:49 PM
Robyn's Avatar
Robyn Robyn is offline
Missy Good Wench ( Moderator)
 
Join Date: Apr 2001
Location: Newberg Oregon
Posts: 10,701
Default

I have been involved with some of the SO CALLED maintenance takeouts

Came in a cool metal shipping can.

Can made a great patio BBQ/FIRE PIT

Engines ranged from rods broken to froze up solid....cracked main webs.

The entire gamut of "CLOSE ENCOUNTERS OF THE WORST KIND"

What Maverick said.

Very low miles...UH HUH...THE SUCKERS SIT AND IDLE FOR DAYS ON END...
A bazillion hours on the engine... hardly any miles on the chassis.

The iron I was involved with we bought for $250 each and that included the cool little shipping can.

Out of several complete engines...NONE WERE USABLE...
__________________
(1) 1995 Suburban 2500 4x4
(1) 1997 Astro
(1) 2007 Chevy Avalanche
THIS IS BOW TIE COUNTRY

Last edited by Robyn; 09-26-2019 at 05:19 PM.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -7. The time now is 02:22 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Copyright 1996-2020 by TheDieselPage.com - All Rights Reserved