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06-14-2019, 09:20 PM
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#21
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Moderator Emeritus
Join Date: Mar 2008
Location: St. Paul, Minnesota
Posts: 3,369
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I'm waiting to see the torque numbers on the new 7.3 liter gasser from Ford; with a 10 speed transmission.
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2021 F350 Lariat 7.3 4X4 w 4.30s, 2018 Wildcat 29RLX
2012 BMW G650GS, Demco Premiere Slider
1969 John Deere 1020, 1940 Ford 9N, 1948 Ford 8N
Jonsered 535, Can of WD-40, Duct Tape
Red Green coffee mugs
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06-14-2019, 09:20 PM
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#22
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Senior Member
Join Date: Jul 2015
Location: Where the stars at night are big and bright
Posts: 970
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The 6.6L is the next generation replacement for the 6.0L and will be cast-iron block. Here are some details from GM Authority:
"About GM’s New 6.6L V8 L8T Engine
The new L8T gasoline engine features 8 cylinders and displaces 6.6 liters via an OverHead Valve (OHV) layout, otherwise known as push-rod. The GM engine is based on the automaker’s fifth-generation Small Block engine architecture initially introduced by the 6.2L V8 LT1, albeit with a few key differences.
Unlike other Gen V Small Black GM engines that have aluminum blocks (like the LT1), the L8T has a cast iron block. The other big difference is that the L8T engine has a bore of 103.25 mm and a stroke of 98 mm, while the LT1 measures in at 103.25 x 92 mm. Finally, the L8T’s compression ratio runs at 10.8:1, while that of the LT1 is 11.5:1.
In the 2020 Silverado HD and 2020 Sierra HD, the L8T engine is mated to the familiar GM 6L90 six-speed automatic transmission."
I have read that GM has an upgraded 6-speed tranny to go with the new engine. I'm surprised that they haven't mated it to the new 10-speed. I have the 6.2L LT1 motor in my 2017 Silverado and love how it pulls and drives. Should be interesting to see the performance of the new 6.6L on the Ike Gauntlet Challenge.
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06-15-2019, 05:36 AM
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#23
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Senior Member
Join Date: Oct 2006
Posts: 1,632
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Quote:
Originally Posted by moose074
I would never compare modern diesel to a modern gasoline engine. Apples to oranges. I have towed with both and believe both a great options for towing. Now if I was a betting man I would predict ( info might be on the internet already I haven’t looked) GM will have numbers higher in horsepower and torque over the Ram but under Fords new big block. Then Ram will be forced to come out with better numbers and the cycle repeats itself. The winner the consumer that can afford a new truck
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Ram already has a larger Hemi in the works. So the GM has some catching up to do before they even get caught up!
__________________
2012 Georgetown XL 350TS, Hellwig front/rear sway bars, Sumo Springs, Blue OX True Center steering damper
2013 Ford Explorer LTD toad, Roadmaster Stowmaster 5000, VIP><Tow Brake
Better to have a bad day of camping than a good day at work! 
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06-15-2019, 05:45 AM
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#24
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Senior Member
Join Date: Apr 2017
Posts: 158
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In transit to dealers this upcoming week.
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06-15-2019, 07:44 AM
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#25
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Senior Member
Join Date: Jun 2017
Posts: 2,543
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Quote:
Originally Posted by Dodge Guy
Ram already has a larger Hemi in the works. So the GM has some catching up to do before they even get caught up!
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See I sleep for a few weeks and now I’m six weeks behind. Speaking of catching up I read Tesla is promise to out tow the f 150 and that a start up electric truck company is taking over a GM plant in Midwest.
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2022 Chevy 3500 Diesel SWD
2022 Columbus 329 DVC
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06-15-2019, 07:59 AM
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#26
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Site Team
Join Date: Mar 2014
Location: Grayson County, Texas
Posts: 21,587
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Quote:
Originally Posted by Nascon
In transit to dealers this upcoming week.
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Do you have a link for this info so I can read the details? I'm interested in this roll-out.
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2015 FR Wildcat 295RSX / GMC Sierra
Nights Camped: '13 = 49/'14 = 74/'15 = 74/'16 = 85/'17 = 110/'18 = 111/'19 = 86/'20 =108/'21 = 115/'22 = 135/'23 = 78; Booked for 2024 = 69 |
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06-15-2019, 08:03 AM
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#27
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Senior Member
Join Date: Jun 2016
Location: Maurice, LA
Posts: 4,095
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Quote:
Originally Posted by robbiels7
It is not out yet. You can't even order a 2020 yet at least on line. I sure do like the new GMC but not sure if the Chevy has grown on me.
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They are the SAME truck except for a few cosmetic changes.
That said I prefer the Chevy grill over the huge mouth looking grills they put on the GMC trucks for years.
BUT, if the GMC was significantly less money............That is what Id buy.
__________________
2012 Wildcat Sterling 32RL, Gladiator Qr35 ST235/85R16 Load rating G, TST 507 TPMS w/ Flow-thru Sensors & Repeater, Reese Sidewinder 16K Pin Box, PI EMS HW50C
2009 Chevy Silverado 2500HD CCSB LTZ Diesel, Fumoto Oil Drain Valve, Turbo Brake activated, 39 gal Aux Tank W/ Fuel Pump transfer, Air Lift Loadlifter 5000 air bags.
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06-15-2019, 09:16 AM
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#28
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Senior Member
Join Date: Mar 2018
Location: New port Richey FL
Posts: 1,464
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Quote:
Originally Posted by DouglasReid
They are the SAME truck except for a few cosmetic changes.
That said I prefer the Chevy grill over the huge mouth looking grills they put on the GMC trucks for years.
BUT, if the GMC was significantly less money............That is what Id buy.
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Agree to disagree but yes same truck different face. I have always favored the GMC but always have a place in the driveway for a Chevy.
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06-15-2019, 09:27 AM
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#29
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Senior Member
Join Date: Jun 2012
Posts: 10,907
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Quote:
Originally Posted by moose074
See I sleep for a few weeks and now I’m six weeks behind. Speaking of catching up I read Tesla is promise to out tow the f 150 and that a start up electric truck company is taking over a GM plant in Midwest.
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Sure it will. For about 5 miles. Then you'll have to stop for a couple hours to recharge. 
__________________
1988 Coleman Sequoia - popup (1987-2009) - outlasted 3 Dodge Grand Caravans!
2012 Roo19 - hybrid (2012-2015)
2016 Mini Lite 2503S - tt (2015 - ???)
2011 Traverse LT, 3.6L, FWD
2009 Silverado 1500 Ext Cab, 5.3L, 4x4, 3.73
2016 Silverado 2500HD Dbl Cab, 6.0L 4x4, 4.10
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06-15-2019, 10:07 AM
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#30
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Senior Member
Join Date: Mar 2018
Location: New port Richey FL
Posts: 1,464
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Quote:
Originally Posted by rockfordroo
Sure it will. For about 5 miles. Then you'll have to stop for a couple hours to recharge. |
If it is the Riven electric truck taking on a gm plant I'm not sure how that works when Ford is a huge Investor it the company.
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06-15-2019, 10:07 AM
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#31
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Senior Member
Join Date: Jul 2017
Posts: 4,057
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Quote:
Originally Posted by Dodge Guy
Ram already has a larger Hemi in the works. So the GM has some catching up to do before they even get caught up!
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You can go so big in a gasser before you're better off with a diesel .
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06-15-2019, 12:44 PM
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#32
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Senior Member
Join Date: Jun 2016
Location: Maurice, LA
Posts: 4,095
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Quote:
Originally Posted by robbiels7
Agree to disagree but yes same truck different face. I have always favored the GMC but always have a place in the driveway for a Chevy.
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 We don't disagree at all. We are simply two different humans with two different opinions, Perfectly normal and OK by me.
In fact that is why GM has both brands, because of you and me. 
__________________
2012 Wildcat Sterling 32RL, Gladiator Qr35 ST235/85R16 Load rating G, TST 507 TPMS w/ Flow-thru Sensors & Repeater, Reese Sidewinder 16K Pin Box, PI EMS HW50C
2009 Chevy Silverado 2500HD CCSB LTZ Diesel, Fumoto Oil Drain Valve, Turbo Brake activated, 39 gal Aux Tank W/ Fuel Pump transfer, Air Lift Loadlifter 5000 air bags.
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06-15-2019, 01:33 PM
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#33
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Senior Member
Join Date: Aug 2017
Location: Saint Paul, MN
Posts: 1,276
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Quote:
Originally Posted by Dodge Guy
Ram already has a larger Hemi in the works. So the GM has some catching up to do before they even get caught up!
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I guess if numbers on paper is the most important metric...but up the Ike with the same weight and identical rear gear ratios (4:10) the little GM 6.0 out pulled the Ram 6.4 by about a minute and half both times. 
Maybe Ram cured that embarrassment with the new 8 speed. 
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Hopefully the new GM motor keeps the best thing about the 'old' 6.0 in that it works hard and puts up high miles like nothing else in the class. I'm also glad they didn't pair it with the 10speed.
I'm excited for all the new gas HD up and comers...let the testing begin.
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24 Ram 3500 CC/SRW/LB/50 gal tank/CTD
2024 XLR 31A LE
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06-15-2019, 01:44 PM
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#34
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Senior Member
Join Date: Mar 2018
Location: New port Richey FL
Posts: 1,464
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Quote:
Originally Posted by DouglasReid
We don't disagree at all. We are simply two different humans with two different opinions, Perfectly normal and OK by me.
In fact that is why GM has both brands, because of you and me. |
Right on![emoji109]
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06-15-2019, 01:54 PM
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#35
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Senior Member
Join Date: Jun 2016
Location: Maurice, LA
Posts: 4,095
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Quote:
Originally Posted by BigH
I'm excited for all the new gas HD up and comers...let the testing begin.
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Test all you want, as long as I am towing heavy I will be driving a diesel truck. When that is no longer necessary I will most likely switch to a gasser.................then again, maybe not!
__________________
2012 Wildcat Sterling 32RL, Gladiator Qr35 ST235/85R16 Load rating G, TST 507 TPMS w/ Flow-thru Sensors & Repeater, Reese Sidewinder 16K Pin Box, PI EMS HW50C
2009 Chevy Silverado 2500HD CCSB LTZ Diesel, Fumoto Oil Drain Valve, Turbo Brake activated, 39 gal Aux Tank W/ Fuel Pump transfer, Air Lift Loadlifter 5000 air bags.
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06-15-2019, 04:01 PM
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#36
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Senior Member
Join Date: Jul 2017
Posts: 4,057
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Quote:
Originally Posted by robbiels7
Agree to disagree but yes same truck different face. I have always favored the GMC but always have a place in the driveway for a Chevy.
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I agree the Chvey FACE [front grill] is way nicer then the GMC FACE
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06-15-2019, 05:13 PM
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#37
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Senior Member
Join Date: Aug 2017
Location: Saint Paul, MN
Posts: 1,276
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Quote:
Originally Posted by DouglasReid
Test all you want, as long as I am towing heavy I will be driving a diesel truck. When that is no longer necessary I will most likely switch to a gasser.................then again, maybe not!
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Nothing wrong with your thinking but I wouldn't consider your trailer 'heavy' (12000lbs right?) ...I wouldn't hesitate to pull your trailer anywhere in the US with the current 6.0 gas truck.
__________________
24 Ram 3500 CC/SRW/LB/50 gal tank/CTD
2024 XLR 31A LE
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06-15-2019, 06:51 PM
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#38
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Senior Member
Join Date: Jun 2016
Location: Maurice, LA
Posts: 4,095
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Quote:
Originally Posted by BigH
Nothing wrong with your thinking but I wouldn't consider your trailer 'heavy' (12000lbs right?) ...I wouldn't hesitate to pull your trailer anywhere in the US with the current 6.0 gas truck.
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You can, but when you get into mountains your truck will be working MUCH harder than mine.
Your engine will be Screaming (because that is where a gasoline engine gets it best TQ, while mine is turning around 1800 or so.
It can be done, any do it all the time, I prefer the ease of driving the diesel.
__________________
2012 Wildcat Sterling 32RL, Gladiator Qr35 ST235/85R16 Load rating G, TST 507 TPMS w/ Flow-thru Sensors & Repeater, Reese Sidewinder 16K Pin Box, PI EMS HW50C
2009 Chevy Silverado 2500HD CCSB LTZ Diesel, Fumoto Oil Drain Valve, Turbo Brake activated, 39 gal Aux Tank W/ Fuel Pump transfer, Air Lift Loadlifter 5000 air bags.
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06-20-2019, 06:45 PM
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#39
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Senior Member
Join Date: Jan 2015
Location: Granite Bay, Ca
Posts: 1,083
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As already mentioned, the new 6.6 is basically the old 6.0 with aluminum heads. It also gets a compression step up, [direct injection, variable valve timing, and 35 more cubic inches. 401 Hp (up by 36 hp) and 464 ft-lbs (up by 83 ft-lbs).
It's not a diesel torque-wise, but the added torque will be welcome. I'm not unhappy with my 6.0 towing 9000 lbs (and moving a 6500 lb 2500 HD) but I'd sure welcome the 83 ft-lbs on those 10% grades.
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06-20-2019, 06:47 PM
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#40
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Senior Member
Join Date: Mar 2018
Location: New port Richey FL
Posts: 1,464
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Quote:
Originally Posted by Hclarkx
As already mentioned, the new 6.6 is basically the old 6.0 with aluminum heads. It also gets direct injection, variable valve timing, and 35 more cubic inches. 401 Hp (up by 36 hp) and 464 ft-lbs (up by 83 ft-lbs).
It's not a diesel torque-wise, but the added torque will be welcome. I'm not unhappy with my 6.0 towing 9000 lbs (and moving a 6500 lb 2500 HD) but I'd sure welcome the 83 ft-lbs on those 10% grades.
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A few reliable mods are much cheaper than a new truck. The 6.0 is very welcoming to add on's.
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