6.2 or 6.5 Turbo thread

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GMC GIANNI

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Anybody have an OBS with the Detroit Diesel? What kind of turbo setups are you running.
I have a garrett into a Banks.
Looking to rebuild this entire engine sometime this winter or next spring. The truck is going to be sitting over the winter months. After that I will have my hoist in state. Junking the truck along with selling any parts anybody needs besides my th400 and 6.2
Looking at where people go for good upgrade parts on these bad boys
 

vr1967

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Mine is not an OBS, but I have an 84 GMC that was delivered to the first owner with one of the very first Banks kits. I am the 4th owner, have known the truck since day one, know the selling dealer well etc.

Truck is 1/2t 4wd, with 3.42 gears and averages 21-24 mpg w/o overdrive. I’m swapping out the 465 for an NV4500 and plan to turn it back into my daily driver.

I did buy a 93 CC DRW truck in 94 that was a turbo 6.5 NV4500 truck. Also in 95, dad bought a new 3500HD with 6.5/NV4500 fora crew service truck. That truck had a bunch of DS4 pump issues and in 2000 I put a Cummins in it for him

While no power houses, I like the GM diesel, especially for mileage
 

smdk2500

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ive got a 95 with a 6.5. My turbo set up is stock and don't really plan on changing that. As for upgrade places there are a few that I know of. Some of them are tailored toward the 6.5 platform but it is a place to start. Also you might check out https://www.dieselplace.com/forum/ there is alot of info there.


1st http://leroydiesel.com
2nd http://www.ssdieselsupply.com/c38_6.5td_ck_trucks.html
3rd http://www.kennedydiesel.com/categoryresults.cfm?Category=1
4th https://www.heathdiesel.com/
5th https://quadstartuning.com/
 

rags77

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Great this should be interesting...I have one mines all stock but I plan on bulletproofing the engine.and cleaning up engine bay.. no mines but here’s an idea bottom pic more my taste not a fan of painted engine accessories
 

rags77

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Recent pic..fixed doors just needed passager front door has a dent in and I swapped out rear doors again.going remove dents on bed or just get whole bed

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Currently going db2 swap to manual injection....I have a good pump and lines.. and throttle pedal.... next need the stand along tranny tcu
 

emso

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ive got a 95 with a 6.5. My turbo set up is stock and don't really plan on changing that. As for upgrade places there are a few that I know of. Some of them are tailored toward the 6.5 platform but it is a place to start. Also you might check out https://www.dieselplace.com/forum/ there is alot of info there.


1st http://leroydiesel.com
2nd http://www.ssdieselsupply.com/c38_6.5td_ck_trucks.html
3rd http://www.kennedydiesel.com/categoryresults.cfm?Category=1
4th https://www.heathdiesel.com/
5th https://quadstartuning.com/
Hi I have the same truck, 1995 2500 sle 4x4 ext cab. Wondering what model turbo we have? Is it the gm5? I need to rebuild the turbo and need the model type
 

smdk2500

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Hi I have the same truck, 1995 2500 sle 4x4 ext cab. Wondering what model turbo we have? Is it the gm5? I need to rebuild the turbo and need the model type
I don't know for sure. Mine looks like it says a 1 on the tag. You can find out by looking at the tag on the turbo. It is on the front of it. Here is a couple pics of where and what it looks like.
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GM Guy

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www.leroydiesel.com and www.quadstartuning.com are the only two places I go for 6.5L specific stuff. I do deal with PTwiringsolutions.com, but he sells through quadstar as well. Heath sold out to dieselsite, so watch all your 6.5L dollars get funneled into other platforms. any dime spend with leroy or quadstar gets reinvested in new products for the 6.5L.

BTW, not a Detroit, no matter how many yee-yees tell you otherwise. If you show me a Detroit Diesel labeled 6.2L service manual, I will ask you who built the Detroit Series 40. (Hint, not Detroit) Marketing has nothing to do with who actually built something.

I am mostly running GM8s on everything, but I am shopping for a Quadstar Super 54 to go with my Kris Stratton IP and Marine injectors I bought earlier. gonna party with one of the old girls. :)
 
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