2000 Cummins signature 600 engine.

From what I've heard it depends on who you talk too. My neighbor has one in his truck with a pittsburg power box on it and loves it (gives me #### about my 600 cat but I can still out pull him) I've talked to others that say it's only worth what they'll give you in scrap. Sounds like just about every other motor on the face of the earth. From what my neighbor says he can squeeze almost 7 out of his, runs to CA with it pulling a reefer, with his t600. He likes it and says it also only cost him 18k to overhaul it and that was doing everything turbo, head, cylinder packs, whole 9 yards (there's less ######## in my trailer after 2 weeks without a washout I know another guy that owns one in a W900 he overhauled his and it was 24k out the door doing the same thing) Overall it's a 600 horse motor it's going to outpull 95% of the motors out there and you're going to burn a little extra fuel. They're going to be good for about 800-1,000,000 before a rebuild if theyre run right and maintained properly. That's the way it usually goes. It's going to be cheaper than something that's painted yellow, probably won't have the pulling power but you'll get better fuel mileage and beat the yellow motor flatland with ease. Hills are mainly where the red and blue/green/whatever color Detroit's painting them now struggle. That's what I can tell you when it comes to that motor. I'd take one if I had too. Ain't nothing like hearing the roar of 600 horses under that hood...believe me I know

 

Had a lot of friends in the 600 club up in PA in the early 2000's. All of them running the 565 and 600 ISX had to have major work, including engine replacement before hitting 400k. Good luck, but I wouldn't touch it.

 

It hasn't blown up after all this time, maybe it's a good one. Maybe it'll throw a rod tomorrow too. Is the seller going to really pay for a new block? I don't trust warrantees as it seems every time I go to use one, no matter the item, I get denied for some reason. Obviously I can't make that decision for you. If you think it's a good deal and it's what you need, go for it.

 

Bout like cat denying warranty because wrist pins break instead of the connecting rod. God himself is the only one who knows what broke but cat ALWAYS blames the wrist pin. Good way to deny a warranty after an overhaul and then make a good chunk of change reoverhauling a motor or putting a reman motor in. Either way ill still pay the money for yellow. Red isn't too bad on the N14 Detroit eh that 470 was a running mother anything else isn't even worth using for target practice IMO. Yea I'm opinionated for sure. And I'm dangerous...didn't get a load and I'm sitting at the flying J in rapid. Girls were at the bar at the truck stop in valentine, and I didn't have time to stop there anyway. But there's no baby dolls here and the party row is dead...think I'd have better luck at the sale barn lmfao. Oh I've lost my #### mind I believe.

 

I have a 565 signature in a '99 Pete. At overhead time it was discovered that it had some oddball cams in it that only came in the first 1000 engines. Sounds like there were some changes made after the first 1000 and I don't know exactly what they are or what it could mean at overhaul time. The engine pulls ok but has been failing oil samples at 5500-6000 miles due to soot. I haven't got to the bottom of that yet, but need to pull another sample here soon to see if it's getting better. The second sample was better than the first, so we decided to keep sampling and changing oil at 6000 miles. If it fails this next one it'll have to go in the shop again. I've only been driving the truck for just under 20000 miles and have put $18000 into it, not all engine related though. Jakes aren't near as good as the N-14 I was driving, mechanic claims they're set up correctly. Wish I had more time to get to the bottom of a few things to give a more scientific/factual evaluation, but as it stands, I would avoid, at least the early big hp isx engines until I knew more about them. I would probably go with a 6NZ Cat next, love the N14 but would like more hp than I see them in.