Eh, yet no one with LS motors worry about adding boost...no one wants to slap a supercharger on a stock 5.7/6.4 in fear of melting pistons. GM might have its issues (lack of fun SUVs being one of them), but the LS motors are great. Easy to mod, tune and get a ton of power.

 

I would have loved to think that adding boost to an ls2 wouldn't cause the rod bearings to disintegrate, have oil sump failure. or blow up the 4l60e every 25k. Maybe if that wasn't the case I would be able to talk myself into owning one. Truly unfortunate how many blown up ls2's are on facebook mp.

 

the curb weight comparison doesn't sound right to me. without knowing all the specs and options i still feel like the caddy weighs more.

and i'd agree the LS is probably friendlier to mods than a lot of other motors. and i think any proper SUV with less than 6sec 0-60 is impressive

 

If they are indeed the same curb weight, one could argue that dodge sucks because the durango weights the same as an escalade. The gearing could also be different, which would affect 0-60 times.

 

I’ll put $20 on the Escalade. Esky is 5553lbs and the Durango is 4913lbs. 600lbs is a lot of extra weight. Car and driver has the stock 0-60 on the escalade as 5.2 and the quarter in 13.8. The Durango is 6.7 and 15 respectively. A better driver and that esky will smoke a lightly modded Durango.

 

Here is the stock escalade 0-60 easily high 6s not in the 5s
2017 Cadillac Escalade 6.2L V8 0-100 MPH

I see the Durango is around 2-300lbs lighter than that Escalade but that not much more than someone's big butt.

 

Escalade still loses, because it’s hideous.

 

I think they are sexy as hell. Not $90k sexy but like $65k sexy.

 

i was behind a new one yesterday and they must have a blackout package like durangos do cuz it looked sweet all black. at least the ass end looked good

 

LS motors are great but few are built for boost. They can do it if done right (not being greedy) and tons of people have done it without reliability issues. It really sounds like this guy had something off with his setup so I’m not sure I would put too much into his results.

Preparing Your LS3 For Surviving Boost - Chevy Hardcore

Can the LS3 engine stand up to the challenge that boost presents? We spoke with some of the leading engine builders in the country to find out just how tough the LS3 is.

www.chevyhardcore.com

 

Best part of the video was his wife. Yum.

 

And truly remarkable how many 100k mile 800hp ls’s are out there. Face it, the ls has the hemi beat 9 ways from Sunday when it comes to adding power and being reliable. I’m about to drop $4500 in cam//header//tune and pick up probably 75hp. $4500 on an LS and I’d be picking up 100-120hp.

 

Not stock. The stock LS can't take any more boost than a 5.7 Hemi and be reliable long term...so that is under 10 psi...or around 500-550 hp. Once over that you should upgrade the bottom end on both the 5.7L Hemi and LS engine. Only advantage LS engine has is WAY more aftermarket support and parts available...but the Hemi is gaining ground there.
To say the LS is a more reliable engine under boost is just short-sided. The key to adding boost is a proper tune. Period. No engine, LS, Hemi, or even a 4G63 will survive with a bad tune.

 

I suffered through the old 4L60E days…. blew up with a stock LT1 (275hp), when I went LS1 I made sure to get a T56. I have 225k on the car now and it finally needs a transmission. Looking at a Magnum F now for it.

 

I just watched the video...WTF is up with all that disassembly just to replace the air filter??? Some real stupid engineering design right there!!!

 

And my crappy, stock, out of the box Durango will do a 3.6 0-60 all day long. I don't understand why the Escalade is supposed to be such a big deal.

 

The Escalade in the video is an ESV (extended wheelbase), so it's 2 ft. longer than a DD and must be pretty close to 6k lbs.

That truck also has more than 80k on the clock, so it has probably lost a step or two.

 

The Escalade in the video is an ESV (extended wheelbase), so it's 2 ft. longer than a DD and must be pretty close to 6k lbs.

That truck also has more than 80k on the clock, so it has probably lost a step or two.

Actually all of you are way off. The ESV weights about 7300lbs. And the Durango is about 5200lbs. Not a great comparison.

 

Here's the video I saw that explains things on boosting a 5.7L Hemi. Note its an early non-VVT Hemi.

 

The LS truly is great for making big power ... but from a mechanic's standpoint, it SUCKS! I swear it was designed by someone whose girlfriend, then wife ran off with a mechanic, and dreams about exacting his revenge upon mechanics the world over. In the Silverado it's over 20 HOURS labor to extract the failure prone AFM lifters. They made sure all the simplicity of the old school 350 and 454 was tossed in the wastebasket, sadly.

It's not a deal breaker, but a HUGE pain in the ass when something goes awry. And if you don't work on them yourself, it will be a HUGE expense. I still get shocked when I quote a price for a LS teardown, and the owner doesn't bat an eyelash. It's always 4 figures at a minimum. I have zero experience with the newer Dodge / FCA / whoever owns them now engines, but I'd wager they're probably designed pretty similarly. That's the way everything is going these days, even lawnmowers. They don't want anyone saving a cent.

 

Well you have to remove the heads to get to the lifters on the Hemi...but from watching this guy, its pretty easy and quick...like the old 350/454's.

 

Well you have to remove the heads to get to the lifters on the Hemi...but from watching this guy, its pretty easy and quick...like the old 350/454's.

.....

Well, on the 350/454, all you had to remove was the intake manifold and rocker arms. Literally an hour job if it was your first time back in the days of carburetors. Was a bit longer once OBD-II came around, but nowhere near 20 hours of the LS powered trucks.

 

On our 18 Citadel with a Whipple SC and weighing 5820 ran a 0-60 4.61 and a 1/4 12.91 109 mph.

 

Gotta love a boosted citidel. Surprises people more than a rt. Both are beautiful though.

 

I'm a little late to this, but I have a somewhat unique perspective. I bought my '21 R/T TnG to tow my LS powered car to events that are farther away.

I'm in my 4th year of running my stock bottom-end LS3, which is making 850+ whp and 1035+ lbs-ft. on 16 psi of boost -- through a stock TR6060. I broke the differential and driveshaft, and upgraded both. None of it will last forever, but I don't think I could push a stock 5.7 or 6.4 as hard and expect this kind of longevity.

 

Well there are always exceptions out there...
Interesting read below on LS3 and boost from builders...for those who have interest on a Dodge site.

Preparing Your LS3 For Surviving Boost - LSX Magazine

Question: Can the LS3 engine, one of GM’s newest offerings in it’s LS family of performance engines and certainly one of its strongest, stand up to the challenge that boost presents? To find out, we spoke with some of the leading engine builders in the country to find out just how tough the LS3 is.

www.lsxmag.com

 

This has been my setup for the past 4 years. I spent A LOT on supporting modifications, and that's why it's been reliable.

 

I did a 4.3, w/ an intake, pedal commander(sport+ maxed), on Mich. Pilot+....! Ears pinned back on that run!

 

Srt?