According to GM, the LT4 offers 457 lb-ft of torque just off idle and twists the crank at 625 lb-ft as quick as 2,800 rpm. It also maintains 90 percent of its peak torque from 2,500 to 5,400 rpm. link Chevy should put that in the Suburban 2500 with 20,000 lb GCWR ! :B

8.1 Van wrote:Chevy should put that in the Suburban 2500 with 20,000 lb GCWR ! :BAn $85k 2500 Suburban should sell really well.:B

I bet someone wanting to tow a fast boat would pay $85,000 for an LT4 Suburban.:C

That is an all aluminum engine, not designed for towing, not offered in 2500 or 3500s

Dannyabear1 wrote:That is an all aluminum engine, not designed for towing, not offered in 2500 or 3500sYet

8.1 Van wrote:I bet someone wanting to tow a fast boat would pay $85,000 for an LT4 Suburban.:CGuy's not going anywhere fast with the tongue jack down :p:B

Chevy LT4 6.2L V8 with 457 lb-ft of torque just off idle !

24 Replies

Sport45
Explorer II
Jun 12, 2014
Hybridhunter wrote:
Ugh.
That whole dyno chart is as WOT. Not sure how folks get confused about that.....

A GM fanboy thread.....

Sure enough. ALL dyno charts are at WOT. Otherwise, they'd be pretty much meaningless. It's funny how so many confuse rpm with throttle position.
Hybridhunter
Explorer
Jun 12, 2014
Ugh.
That whole dyno chart is as WOT. Not sure how folks get confused about that.....

A GM fanboy thread.....
Taco
Explorer
Jun 11, 2014
That engine will never be offered from the factory in a truck. But it would make a nice towing engine if they ever did. Well the power would be nice, maybe not so much on the fuel economy.
travelnutz
Explorer II
Jun 11, 2014
Sport45,

Say what? The 457 torque is at approx 1000 rpm! You'd best look closely at the chart again.
Sport45
Explorer II
Jun 11, 2014
rjstractor wrote:
Sport45 wrote:
200 hp with your foot mashed to the floor lugging at 1100 rpm isn't going to seem like a tow beast to the driver. But it wouldn't be bad for sure.

200 hp at 1100 rpm takes 955 ft/lbs of torque. That would be pretty beastly to me! The chart actually shows about 100 hp at 1100 rpm, which equates pretty closely to the 457 ft/lb off idle torque the motor is supposed to have.

Yeah, I was looking at the scale on the wrong side of the chart. But the 457 lb-ft of torque isn't anywhere near idle. It takes 100% throttle to get that. :)
catfishmontana
Explorer
Jun 11, 2014
Almost as much power as ford had in the 13/14 model year Shelby.
Lessmore
Explorer II
Jun 11, 2014
dodge guy wrote:
When will it be recalled?!!!

Probably have to get in line behind the latest Cherokee recall. Did you see the latest ?
Ron3rd
Explorer III
Jun 11, 2014
Good info. I like the Ford 6.2 too and either of those might be my next truck when I retire the Tundra.
rjstractor
Nomad
Jun 11, 2014
Sport45 wrote:
200 hp with your foot mashed to the floor lugging at 1100 rpm isn't going to seem like a tow beast to the driver. But it wouldn't be bad for sure.

200 hp at 1100 rpm takes 955 ft/lbs of torque. That would be pretty beastly to me! The chart actually shows about 100 hp at 1100 rpm, which equates pretty closely to the 457 ft/lb off idle torque the motor is supposed to have.
8_1_Van
Explorer
Jun 11, 2014
jalichty wrote:
I thought GM was putting a 6.2 in the 2014 or 2015 trucks. Is that not the same engine? I'm guessing not by the prior comments.

"General Motors has officially captured the horsepower crown for mainstream pickup trucks with its 6.2-liter V8. The big mill, available in both the Chevrolet Silverado and GMC Sierra, comes to market with 420 horsepower and 460 pound-feet of torque, handily outdoing its two cross-town competitors, Ram (5.7-liter V8, 395 ponies and 407 lb-ft) and Ford (6.2-liter V8, 411 hp and 434 lb-ft).

The new GM 6.2 will take a bit of an investment, though. Those that want the extra thrust will need to go with either the LTZ or High Country trims from the Chevy, or the SLT and Denali trims from GMC, which are the two highest trim levels for the respective vehicles. Trim levels aside, if you're in the business of towing, GM has you covered. Optioned with the 6.2-liter V8 and the Max Trailering Package, owners will be able to pull 12,000 pounds, a hugely impressive figure. "
GM 6.2L V8 claims most powerful light-duty truck engine title