GMT 900 Trucks General Discussion 2007 - 2013 Trucks | General Discussion

2011 5.3 6spd vs 6.2 6 spd

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Old 03-06-2011 | 02:56 PM
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Justin, get the 6.2 man. They pickup crazy power with a tune and taking some tq mgt out. I would go for the 6.2 personally, especially towing some.
Old 03-06-2011 | 03:12 PM
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Mine was about $32k after tint, leveling kit, and bedliner plus rear wheelwells. LT 4x4 with NHT, cloth, bench seat, interior plus pack, trailer brake controller, and skidplates.
Old 03-06-2011 | 03:20 PM
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Originally Posted by Rhino79
Justin, get the 6.2 man. They pickup crazy power with a tune and taking some tq mgt out. I would go for the 6.2 personally, especially towing some.


Haha, Ryan, I was going to call you mid day today and ask how you liked tuning the 6.2l. Pm me your number to make sure I have the right one and I'll call you. I have two trucks for you to tune, because me and a buddy are buying at the same time.

The 6.2l price is right at 30,000 and the 5.3l price is 28,200~.
Old 03-06-2011 | 03:37 PM
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6.2 ftw
Old 03-06-2011 | 03:38 PM
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Just go for it; I did
Old 03-06-2011 | 03:40 PM
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Originally Posted by rjwz28
3.73 gears hurt the mpgs a bit, but I love them anyway
I doubt 3.73s are hurting your mpg, especially with the 33s
Old 03-06-2011 | 04:00 PM
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Stock trucks should see a bit of a dip with the steeper gears. The best fuel economy numbers I've seen on here from 6.2 trucks are from 3.42 trucks. However, with the taller tires I really doubt my fuel economy would be any better with the 3.42s, and my acceleration would certainly suffer. I've only driven it one mile on factory rubber at stock height, so I have no idea what my mpgs would have been
Old 03-06-2011 | 04:07 PM
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Lucky I see 12 miles street/highway.. And I only have a 4.8
Old 03-06-2011 | 04:18 PM
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Ouch, that about what I get. But I have a lot more engine and sit a lot higher than you on offroad rubber. Are you running a steeper rear gear or something?
Old 03-06-2011 | 04:35 PM
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Intake headers exhaust 3:73 vette servo .. Tune on 275 55 20.. So
I say yes on the 6.2.. Get it


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