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Old 09-19-2017, 03:36 PM   #1
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Engine ID please

Found a bus local, says "Big 240 GM hp motor and Allison transmission". Done alot of research on here as I prepare to start a conversion but not familiar with the GM diesel. Can you help me with what the GM motor is and if it's a good skoolie option? Thanks!
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Old 09-19-2017, 04:19 PM   #2
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What year what type of bus
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Old 09-19-2017, 04:29 PM   #3
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1997 Thomas
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Old 09-19-2017, 05:12 PM   #4
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Probably the 6.5.

https://en.wikipedia.org/wiki/Detroit_Diesel_V8_engine

Don't take it for granted though, verify!
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Old 09-19-2017, 06:17 PM   #5
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Can anyone help with the pros/cons of the Detroit Diesel motors?
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Old 09-19-2017, 06:19 PM   #6
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Probably the 6.5.

https://en.wikipedia.org/wiki/Detroit_Diesel_V8_engine

Don't take it for granted though, verify!
A 240hp 6.5? With an Allison?
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Old 09-19-2017, 06:29 PM   #7
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BTW, It is a diesel per the ad info.
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Old 09-19-2017, 06:45 PM   #8
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Was Thomas using GM's in 1997? I thought by then they were using Freightliner chassis.
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Old 09-19-2017, 09:01 PM   #9
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Was Thomas using GM's in 1997? I thought by then they were using Freightliner chassis.
It could be a cutaway chassis.
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Old 09-20-2017, 04:58 AM   #10
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It could be a cutaway chassis.
Maybe, but would that have an allison?
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Old 09-20-2017, 08:41 AM   #11
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From the photos, it is a standard flat nose bus. Hope to go look at it today. If it is a Detroit Deisel is that a good motor? I don't see alot about them posted on here.
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Old 09-20-2017, 09:05 AM   #12
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Do you have a link of the bus ad? I doubt it has a 6.5 in a flatnose.
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Old 09-20-2017, 09:12 AM   #13
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The mystery is solved with an edit to the ad last night. It now says 8.3 Cummins. Thanks for the help guys. Going to look at it today. Will keep you posted.
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Old 09-20-2017, 05:33 PM   #14
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Went and checked it out. Lifted the engine cover... DT466 motor. The lady that listed it has no idea what she has. Got on the freeway and pedal mashed topped out at 62 on flat ground. Very slight incline and it started losing speed. Not gonna work for the traveling we hope to do. Plan to take our time but don't want everyone on the highway mad at the slow bus.
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Old 09-20-2017, 05:58 PM   #15
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Went and checked it out. Lifted the engine cover... DT466 motor. The lady that listed it has no idea what she has. Got on the freeway and pedal mashed topped out at 62 on flat ground. Very slight incline and it started losing speed. Not gonna work for the traveling we hope to do. Plan to take our time but don't want everyone on the highway mad at the slow bus.
62 is pretty standard, seems a LOT of buses top out around 62.
Most NC buses will only do 45-50.
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Old 09-23-2017, 07:45 PM   #16
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The one I bought from the first seller's son will cruise at 65. The build begins!!!
AKA: Cutman
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