how good is a 6.5 chevy
Not very good at all. It was an engine made by Detroit Diesel when it was still owned by GM. Back then GM's focus for the diesel engine wasn't like it is nowadays. The 6.2 and 6.5 weren't ment to be powerhouse engines, they were made as fuel efficient alternatives to the gas engines. They were both poorly engineered IDI engines. A small block 350 would outdo them any day.
FormerVendor
Joined: Jan 2010
Posts: 322
Likes: 30
From: Palo Cedro, CA
Defiantly keep the Cummins. But as far as 6.5's reliability I worked at Caltrans (State Road maintenance) They had six 6.5s most of them had over 300k on them and they still had lots get up and go left. Thats good considering everyone there drove all on the equipment like they stole it.
Diesel Enthusiast
Joined: Jul 2009
Posts: 141
Likes: 3
From: Pleasanton,CA
my opinion as someone whos father has had every diesel chevy there is and current 95 dodge owner , is that the cummins may be a better motor but chevy is a better overall package.this probly does not help but both trucks have their advantages.
Moderator
Joined: May 2008
Posts: 187,100
Likes: 9,677
From: MIAMI, FLORIDA
You mean the DURAMAX
The injectors were known to fail & blow your engine
The 6.5 was only ment to give you better MPG
The injectors were known to fail & blow your engine The 6.5 was only ment to give you better MPG
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schmauster
Chevy/GMC 6.2L and 6.5L
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Jul 26, 2015 11:33 AM
