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Old 03-06-2020, 10:01 PM   #1
New Member
Join Date: Mar 2020
Posts: 3
Chevy express 6.0L gas engine - lifespan??

Hi all,
I'm considering buying a converted 2006 Chevy Express shuttle bus (about 23' long). It's got a 6.0l gas engine, and 140 000 miles (225 000 km).

I know just about nothing about engines, but doing some research, I read that gas engine have a much shorter lifespan than diesel ones.
So I'm wondering if I should be worried about this one?

Any help is appreciated

MikaelT is offline   Reply With Quote
Old 03-06-2020, 10:20 PM   #2
Bus Crazy
Join Date: May 2016
Location: Georgia
Posts: 1,924
Year: 2001
Coachwork: Blue Bird
Chassis: IH
Engine: T444E
Rated Cap: 14
As far as I'm aware, the GM 6.0 gasser is a winner of an engine. Quite a few have been said to run well over 250K miles with some care.

The Ford 6.0 diesel, on the other hand, was a nightmare. It's shortcomings could be overcome at considerable cost and effort (though it had to be done before the engine failed, it was a complete loss after that). Once "bulletproofed", they gained pretty good reputations.

Just be aware that "Cutaway" style buses don't have high GVW ratings, so don't plan a build that will add a lot of weight. They are easy to overload if you go overboard.
Brad_SwiftFur is offline   Reply With Quote
Old 03-06-2020, 10:25 PM   #3
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Join Date: Mar 2020
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Thank you for your input! Very reassuring to read
As for the weight, good to know! Though I don't plan on doing anything too crazy, so it shouldn't be heavier than the 20 or so passengers it used to carry.
MikaelT is offline   Reply With Quote
Old 03-07-2020, 09:00 AM   #4
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Join Date: Nov 2019
Location: North Texas
Posts: 1
Year: 2003
Coachwork: Diamond
Chassis: Ford E-450
Engine: 7.3L Powerstroke
I've driven many GM 6.0 Vortec engines for work and never had any issues, I like those engines a lot.
Phycon is offline   Reply With Quote

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