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Old 09-08-2016, 01:05 PM   #1
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Engine comparisons

Hi everyone. This weekend is the big auction. I am still thinking about the 2006 ford 6.0 due to size and I think I could get one relatively cheap.

But if a bigger 48-ish passenger bus was available for cheap I might consider it.

So...if these buses below are available in my price range, which engines should I stay away from? I have a very small amount of knowledge about diesels so my learning curve will be great. Any below stand out as a great engine? We won't be driving far or pulling big hills. Just need a small-ish RV. Thanks for any thoughts.

388 merc
C-7 Cat
T444E
M-F 7
DT466E
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Old 09-08-2016, 01:28 PM   #2
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there are a lot of fans on this forum of the dt466e. that's the only one on the list i would bid on. imo
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Old 09-08-2016, 01:42 PM   #3
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Good. Thank you. I had seen a lot of info pointing to that same conclusion. What I lack in engine knowledge, I make up in reading a bunch.

Thank you for putting in your two cents. Let's see what other guys are saying.
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Old 09-08-2016, 02:34 PM   #4
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After a lot of reading, the dt466 and the Cummins 8.3l seem to get the most love here and elsewhere. Many say caterpillar engines are decent enough but expensive to maintain and repair.
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Old 09-08-2016, 03:10 PM   #5
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Quote:
Originally Posted by Zndrson View Post
After a lot of reading, the dt466 and the Cummins 8.3l seem to get the most love here and elsewhere. Many say caterpillar engines are decent enough but expensive to maintain and repair.
Can't you get 600hp out of the 8.3?
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Old 09-08-2016, 03:24 PM   #6
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Can't you get 600hp out of the 8.3?
Its certainly a big engine but that seems like a lot. Maybe in the marine version but 600hp in a bus seems...excessive to say the least.
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Old 09-08-2016, 03:46 PM   #7
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Can't you get 600hp out of the 8.3?
You won't reliably get 600 hp out of any of the ones he listed. At least not for 500k miles.

If I had to choose. I'd go in this order.

Dt466
ISC
C7/Maxforce 7
T444E

and under no circumstance would I buy a Mercedes. From my experience, they're unreliable, finicky, and hard to get parts for/expensive when you do
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Old 09-08-2016, 04:57 PM   #8
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I would avoid Mercedes engines like a plague. The Ford 6.0 has earned a bad rep as well, but they can be improved upon. I personally wouldn't buy a Cat engine, but they're OK if you don't mind visiting a Cat dealer (not always easy to find in small towns) for parts (as mentioned, usually at a higher cost).

The Cummins engines, both the 8.3 and 5.9 are pretty solid engines, I wouldn't expect more than about 300 HP from the 8.3 and about 200 or so from the 5.9.

IH engines, the DT466 (very common) and T444 (also common) and Ford 7.3 (same guts at the T444) are also pretty solid. Their DT408 and DT360 cousins are good (The DT408 is almost the same as the DT466, just a smaller displacement internally).

Cap'nHooligan asked if one could get 600 HP from a Cummins 8.3. The short answer is "Sure, you can", but at what price? A couple days for a tractor pull setup. I've seen Dodge trucks build the 5.9 for insane HP, but they don't last long. For our purposes, you'll want to consider something considerably larger, like an ISX Cummins (Somewhere around 15-16 liter engine) but they can be factory spec'ed for up to about 600 and will last many, many miles at that rating. The Volvo I recently turned in had that engine and was showing close to 800K miles, and the engine still had a lot of life left in it.
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Old 09-08-2016, 05:02 PM   #9
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Originally Posted by Brad_SwiftFur View Post
I would avoid Mercedes engines like a plague. The Ford 6.0 has earned a bad rep as well, but they can be improved upon. I personally wouldn't buy a Cat engine, but they're OK if you don't mind visiting a Cat dealer (not always easy to find in small towns) for parts (as mentioned, usually at a higher cost).

The Cummins engines, both the 8.3 and 5.9 are pretty solid engines, I wouldn't expect more than about 300 HP from the 8.3 and about 200 or so from the 5.9.

IH engines, the DT466 (very common) and T444 (also common) and Ford 7.3 (same guts at the T444) are also pretty solid. Their DT408 and DT360 cousins are good (The DT408 is almost the same as the DT466, just a smaller displacement internally).
Is it fair to say. The IH engines are fairly reliable if I have enough money at the auction block...if I don't I think the next best thing is the 6.0's. There are a bunch to auction so I might could get one for pennies. I'd rather just find a fairly reliable engine but my pennies are tight. Thank you for responding. I wasn't aware of the 7.3 and the Dt466 and the T444 being in the same family.
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Old 09-08-2016, 05:42 PM   #10
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Quote:
Originally Posted by American View Post
Is it fair to say. The IH engines are fairly reliable if I have enough money at the auction block...if I don't I think the next best thing is the 6.0's. There are a bunch to auction so I might could get one for pennies. I'd rather just find a fairly reliable engine but my pennies are tight. Thank you for responding. I wasn't aware of the 7.3 and the Dt466 and the T444 being in the same family.
Don't buy the 6.0 unless you have thousands of dollars reserved for repairs AND upgrades.
I'd take a cat any day over a 6.0.
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