Before those, was this piece of crap. 125hp/225ftlbs. Why bother? Had a 78 with one. Crank was in 10 pieces at 28k miles.
http://www.dieselhub.com/idi/olds-diesel.html
http://www.dieselhub.com/idi/olds-diesel.html
Then what are they?

They are a diesel engine installed in GM trucks. Go to your nearest Detroit Diesel Distributor and try to order parts for one. See where that gets you.
Martin
, so by your reasoning the K5 was not made by gm 
All this custom springs, big fancy shocks, air bumps, crossover steering, go fast Bull$hit.... Kinda sucks big time on the wallet and time![]()
You can stop a anytime you like. ......
I bet I've got 10x the cash into this project than I could ever get back. And counting... I have to do the custom springs. The washboards and rocky dirt roads are miserable with my Rancho springs, especially with a 2011 Wrangler for comparison.I went to a chevrolet dealer to order a part for my K5, they didn't have it, so by your reasoning the K5 was not made by gm
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is for. No, because they told you it was discontinued. I worked at a Detroit Diesel Distributor for three years. There is no where for them to even look for 6.2 or 6.5 parts. They can however perform work on your Allison transmission in a GM pickup. Or if you would like to order some parts for your 8.2 Liter Detroit Diesel in a mid 80's Medium Duty truck, they can get those too. A 6.2, or a 6.5 are not a Detroit Diesel. They may have made parts for them for GM, but that means NOTHING. Early Series 60 Detroits have a nice JDFW (John Deere Foundry Works) casting mark on the blocks and the timing covers. They are Detroits, not John Deeres. John Deere also cast blocks for GM cars. You can't go get any parts for a Series 60 Detroit at your local John Deere dealer.
Martin
You do know that even Some series 60 blocks were cast by JDFW. Detroit,and Navistar have sub'd out Casting to John Deere .No, because they told you it was discontinued. I worked at a Detroit Diesel Distributor for three years. There is no where for them to even look for 6.2 or 6.5 parts. They can however perform work on your Allison transmission in a GM pickup. Or if you would like to order some parts for your 8.2 Liter Detroit Diesel in a mid 80's Medium Duty truck, they can get those too. A 6.2, or a 6.5 are not a Detroit Diesel. They may have made parts for them for GM, but that means NOTHING. Early Series 60 Detroits have a nice JDFW (John Deere Foundry Works) casting mark on the blocks and the timing covers. They are Detroits, not John Deeres. John Deere also cast blocks for GM cars. You can't go get any parts for a Series 60 Detroit at your local John Deere dealer.
Martin
Also
The 6.2 WAS designed by Detroit Diesel, produced by GM for use in GM light trucks and serviced by GM dealers. It's loosely based off the 8.2 fuel pincher.
Yeah I am aware of that.
Martin


Point is 6.2/6.5 IS a Detroit Diesel, Just like a Dmax is an Izuzu .![]()