GM LT vs LS Engines

A look at two great GM V8 engines, IMO you can't go wrong with either.
What it comes down to is your budget and need. The LT engines with Direct Injection, CVVT and the 8 speed transmission will be the engine to beat in the near future; the LS still performs well and offers lower cost.

[@maxwolthuis]

The way he taps stuff with the elder wand just makes my friggin day... other youtubers take notes

[@jamescarlin569]

Lmfao I was thinking that same thing ...boss

[@jamesdellaneve9005]

Talredhedkid Who are you calling Boomer? 😜

[@sewjeepinmama3437]

Guess who bought that wand for him and keeps the magic alive ;)

[@paulsalmon5928]

This is what I took from this video and have known this for quite some time.......GM V8s are simply the best 8 cylinder engines in the world today.

[@tucobenedictopacificojuanm5570]

Wow...I've been a mechanic for 40 years...this guy is as sharp as they come. Immediately subscribed!

[@veneratedmortal4369]

Don't all mechanics know this stuff?

[@fuckjewtube69]

@@veneratedmortal4369 Yes. All mechanics know every single detail about every engine ever made because why wouldn't they?

[@UnknownAttractions]

Elder Wand spotted

[@tylerryan4711]

He just vomited decades of knowledge at me and I loved it!!!!!

[@sewjeepinmama3437]

Love this comment :D

[@johnbeer5242]

Not Hitler 🙄🙄🙄hahah u sick fucks😂😭

[@_baller]

Not Hitler and you loved it

[@samsonian]

Not Hitler hoo boy, you know the party is in full effect when fools start busting out the Cleveland Steamer. When the Glass-Bottom Boat rears its head that’s when you know you’re not calling the doctor; you’re calling a priest.

[@alf9868]

Very informative. Thanks for taking the time to explain in detail the operation of these engines and their respective control system strategies.

[@NeilJable]

Al One thing to note, he talks about the Air-Fuel-Management system (AFM), it’s not correct. AFM stands for Active Fuel Management, sometimes known as DOD or displacement on demand or cylinder de-activation.

[@anthonycampos7417]

mans is a LT/LS Wizard, he was using his wand to point out things on the block the whole time

[@marioncobaretti2280]

im sure thats his entire life without a girlfriend , what ever makes ya happy in life , i dont knock him!

[@sewjeepinmama3437]

He has a wife who bought that wand. ;P

[@cliffordcullen1687]

Just did a LS3 Erod swap on my 1990 Fj62 Landcruiser retaining the H55F 5speed manual. Absolutely love it. 4.10 gears and 35s. It gets 16mpg. Not bad for that heavyweight. It passes California Emissions. Definitely the way to go in a 1995 and older vehicle.👍

[@stevewyatt3339]

www.jegs.com/i/Chevrolet-Performance/809/19355405/10002/-1

[@oldschooldude8370]

​@@stevewyatt3339 Only $8400? Those 6.2's are nice though. My buddy has most of what he needs to rebuild one that he got for free. Didnt blow gaskets or spin a bearing.

[@landoom]

Great video and info as usual. Greatly appreciated!

[@anonymousgeorge4321]

Truly outstanding presentation. Subscribed.

[@johnfarney5328]

Wow! alot of info! Thank you. I actually understand the differances now!

[@nocki5oh]

Great comparison video! Best one I’ve seen yet

[@scottweatherman3266]

Excellent teaching my friend. TY

[@isaacsgarage931]

Thanks for this video! Very thorough and informative!

[@madebydeyan]

What a nice overview of those engines

[@Smokey-88]

Learned a lot, I appreciate the video, very educated lingo.

[@MrChristianbowman82]

This was a great video thank you for the knowledge. I may just do a LT4 swap instead of a ls3 in my 68 camaro

[@markarnold6257]

ive experienced both. 09 G8 GXP was a rowdy little sedan. now have a 17 Siverado 6.2. Wow, do i love this truck! both torque monsters.

[@suprmn1978]

First thing I noticed was the Elder Wand! Love it!! Great info also.

[@The_Drive_Inside]

A very much needed video!!! Thank you!!

[@chrisrake8914]

What a world of knowledge.. Amazing!! Thanks brother!

[@senrusho]

Pointing at engine components with the elder wand is such a gangster move.

[@sewjeepinmama3437]

Glad I thought of it ;)

[@Todd_S]

Lots of knowledge in this video. I like it. I have the 5.3L LC9 in my 2012 Chevy Silverado.

[@raymondjones7489]

Very informative! I appreciate the information!...thank you! 😊

[@ethancupp530]

Very detailed and concise. Earned my subscription!

[@SuperFireHog]

He reads off the engine parts like a newspaper ! Great job !!

[@bowtie-man]

I could definitely see me in a jeep with a LS/LT swap. Very informative, thanks for the video. 👍👍✌✌

[@unleashedrider4309]

Well you might as well just skip the Jeep part

[@mikestanly749]

@@unleashedrider4309 YEP

[@billthompson9595]

Unbelievable tutorial. You Sir are one very smart individual. I have a new vette with the LT1 and have learned so much from you, i am trying to figure out how to keep dirty side crankcase fumes from getting into the intake to help keep the intake valves and system cleaner. If you ever get a chance to speak on this I would be very great full. thank you.

[@AKDevilman]

Man these dudes thought of everything!!! Great job fellas! If I need an all in one solution for a jeep in the future, I am definitely recommending you guys. LT kit FTW though for the superior cooling and higher compression.

[@blackericdenice]

6:30 My 96 4x4 Tahoe with the old school Vortec 5.7 had 270k miles and was burning a lot of gas. Mpg had dropped from 14.5 mix driving to 12 mpg. I was reading online about an old timing chain could cause an old engine to burn gas. This made sense because my engine was a little raw at low speed but would run like a boss at higher rpm. When I change the timing chain. I had to advance the cam slightly to install the gear. The engine ran smoother at low rpm and the 14.5 mpg came back after the second fill up. This is when I realized how much vvt matter.

[@hochhaul]

VVT is why DOHC engines suck when it comes to reliability. The VVT solenoids and cam phasers are the last to get oil, get the weakest oil pressure, and are the first to form sludge deposits. That's why Ford has struggled with DOHC V6 and V8 reliability for decades. Even Toyota has struggled with VVT reliability in high output V8's. The VVT system on a pushrod V8 is very close to the oil pump by comparison. Hence why pushrod engines don't have the major problems DOHC engines have.

[@blackericdenice]

@@hochhaul Wrong. vvt is the reason Ford DOHC 302 cuin v8 make 1.52 hp/cuin. If the OHV Corvette 6.2 aka 376 cuin v8 made 1.52 hp/cuin. It would make 571 hp. Wrong. Sludge come from people who don't change their oil and or let the engine run low on oil. Wrong. GM OHV engine oil pump sit on the front of the crankshaft just like Ford. GM do have problem with vvt it just to owner are stupid and ride around with the light on thinking they need an o2 sensor.

[@hochhaul]

@@blackericdenice Sorry but you have no idea what you're talking about. Also, who cares how much HP per liter an engine makes. The GM v8 could be 10 liters and make the same HP. As long as it gets better fuel economy and is more compact than the 5.0 Coyote, I'm ok with that. Ps Ford's but and solenoids are the last in line to get oil and are at the top of the engine. The LS and Gen V GM v8's have a VVT system but it's down low and simpler in design. Sinple is good especially when you're offroad.

[@blackericdenice]

@@hochhaul When ever someone tell me I have no idea what I'm talking about. They are not old enough to drive. People don't buy V8 Mustangs looking for mpg. That more compact bs is what GM say to their customers to take their mind off the fact that. A much smaller engine is making as much hp as their larger old design engine. Just like GM has a turbo engine in their full size truck. They always end up doing what Ford has already done.

[@hochhaul]

@@blackericdenice Typical clueless Ford fanboy.

[@badbart283]

Just wow! Information overload!

[@jerzey22]

Fantastic video!

[@Martin750hp]

Hey mr. tech. knowledge guy, nice explanatory of newer engine electronic, & component internal working overview of both engines on the many difference's things a mechanic that's ase certified should know working on newer and updated engine's! nice explanation........

[@EGGINFOOLS]

Nice explanation!

[@bakers5boys]

This is THE combination

[@shaynedumas4436]

IM VERY IMPRESSED WITH YOUR VIDEO...THANKS..I SHARED IT ON FB

[@josephdunkle1152]

So to make a Jeep run good, put a Chevy in it?

[@WonkaFab]

yup, @5.3_Wrangler on instagram he is building 6.0 for his lifted jeep

[@Trident_Euclid]

@Your Mums HITACHI trash

[@stevewyatt3339]

Ramjet 572 is only choice

[@mistamaog]

LS Swap a Wrangler

[@stevewyatt3339]

@@mistamaog should use gen V LT crate if not poor as fuck like me - www.jegs.com/i/Chevrolet-Performance/809/19355405/10002/-1

[@TheAnonymous1one]

Damn so much good info!

[@judd1sanchez]

outstanding presentation.

[@bcwrangler]

Impressive video!

[@apollorobb]

Yet again confirming GM is better than chrysler junk lol

[@ruscoleman1741]

if GM is so good, what's up with all the spare motors?

[@maverickmason4946]

Chrystler motors are not junk. But yes, GM is better. I like both GM and Chrysler products. Ford sucks.

[@roncook8566]

@@ruscoleman1741 considering the millions upon millions of vehicles on the road powered by these engines, the rust belt and wrecks are going to make a lot of these available for swaps

[@addisondoty4231]

@@roncook8566 yep u can find a lot of them down here lol

[@unleashedrider4309]

@@ruscoleman1741 well you know we got a ram Jeeps every once in awhile.

[@bretthansen8166]

Great video as always! Very informative. I’m personally not a fan of Active Fuel Management and especially direct injection. Glad I have an LS3 🙂

[@drtb69]

Good video, thank you!!

[@luisrodriguez3411]

Nice looking Yellow two door in the background at the beginning of the video (my jeep) haha getting l99 / 6l80. As always great video tons of info.

[@adamkalman6011]

you lucky dog im jelly

[@G8GTJav]

I think you mean "active" fuel management, as in cylinder deactivation. I would hope all motors have air/fuel management, 😆. Lots of good info, you know a lot about the LS/LT motors. Thanks for the video.

[@VEGASROBBI]

Yes technically it's active fuel management your right. They use to call it dod or displacement on demand. Then we have Chrysler MDS and all the other manufacturers nomenclature it gets confusing but basically it's all about cylinder deactivation.

[@NeilJable]

Glad to see someone else who knows what they’re talking about.

[@NeilJable]

jack daniels It does, but it’s marginal (approx 1%-1.5%)

[@jackdaniels2657]

@@NeilJable so no difference

[@NeilJable]

jack daniels No, the difference is measurable but it’s not significant. No difference means 0 % gain.

[@godzilla7148]

Just what Jeeps needed from the get go LS or LT motors!

[@colbysmith1398]

Very good info and video. What trans and transfer case are yall using?

[@thomasmartinez3808]

The wand adds a nice touch to the video lol

[@lee1978good]

Man knows his shit! Hi from Australia 😎

[@thevloggingmachinist9344]

Cool video. Good information. 99% of the time when I find a video on KZbin where someone is talking about motors I'm like stop just stop. lol

[@Nipplator99999999999]

I had a LT1 and 4L60E out of an interceptor Caprice that I got slightly deeper into than planned. After reworking the engine and completely upgrading the trans and pumpkin, It would leave 6 inch stripes going into gear, and still roast tires if the pedal was dropped going 60. Only down-side was the local law noticed, and it got expensive, extremely quickly.

[@RileyMy5090]

Lots of information here! Makes me want a LT instead instead of my l92!

[@khalidalaa8078]

You are great describing those engines, If these engines has an ecu that can shut-off half of the cylinders and reduce injector pressure, those engines would be an amazing everyday driving in a car plus insane powerful output engines

[@curbstomp3126]

You earned a new sub

[@roncook8566]

Putting a 5.3 in my XJ mated to the original 5 speed was the best modification I've done. No oil leaks, better reliability, much better fuel economy and obviously way more power. All that and it gained no weight in the front end over the old 4.0

[@jhira001]

Harry Potter wand? Great review!!!

[@ad356]

i think GM confuses people with the LT1 designation. there is the LT-1 from the early 1970's, basically a "hot" factory 350, then there is the gen II small block LT1 which is a redesign of the 350 (actually i real strong engine, i have a 1996 camaro Z28 and i actually like that engine), and then there is the current LT1. very confusing.

[@Ravaniscool]

I probably have the same engine as you in my 1997 Pontiac Trans Am WS6, right?

[@jquest43]

Ravaniscool I had same car.its Lt1

[@subielife4life]

@@Ravaniscool yup you do have the lt1, the firebird and camaros didnt get the ls1 until 1998, while the corvette got it for 1997

[@chriss.8582]

Yup, I thought this video was going to be a comparison between the gen II LT and the LS platform until about 8 minutes in and I still didn't see a 90s era LT1/LT4 like I was looking for.

[@Ravaniscool]

Jorge Lopez I had the 1998 WS6, I miss it. The LT1 isn’t too bad either. It’s a very good engine.

[@stuartw1667]

Good info!

[@keithlennox9222]

This man is a wizard, for real! Legend

[@sewjeepinmama3437]

Quite so.

[@itskarl79]

What are you using for an ECU on this, Holly X max or HPtuners or stock tune? You made mention of most things controlled by GM comp, but not all?

[@dayum_daddy7103]

Gen 4 LS RIP the last Vortec engine series that gm ever built

[@nickg5276]

active fuel management, both of my PCV vent out to a catch can and there’s no problem. Just no blow by shit going into my motor. Mines an 09

[@mechanicdustin3505]

I’m confused about you mentioning if the engine has “air fuel management” don’t all fuel injected engines have an air fuel management system? I think you’re referring to the DOD system? What is that sensor for? What does it do?

[@johnd5805]

Thank you WranglerJKLS for the excellent and thorough information. Making Jeeps great again. I wonder if the mpg are improving a little with the LS swaps? Anyone have real experience?

[@WranglerJKLS]

On average you should get 1-2 mpg better than the V6 if you drive similar. On heavy JK's maybe more benefit due to the extra displacement.

[@roncook8566]

I went from a 4.0 on my XJ getting 15 mpg highway. With the new 5.3 I get over 20 mpg

[@WranglerJKLS]

There are a lot of variables when it comes to mpg, weight, altitude, drag.... but my usual answer is whatever your getting with the V6 you should get 1-3 mpg better with the V8. The V8 having more cubic inches is less stressed and works less, especially in a heavy JK. We see more dramatic gains in heavy JK's with 40's because the V8 can stay closed loop running off the O2's turning lower rpm's where a V6 would rev up and go into performance enrichment. With some alcohol in our gas the stoich point is about 14.2:1 where open loop is closer to 12:1 AFR.

[@johnd5805]

@@roncook8566 thanks for the info

[@hochhaul]

It's as if GM's small block engineers design their engines with the understanding that they aren't just designing an engine for a GM vehicle, they're designing an engine that will eventually end up in dozens of other non-GM vehicles. Changes between generations are small enough to not break compatibility completely. No segmented aftermarket where you need to know which plant the engine was assembled in, the date it was assembled on, the guy that put it together, etc (I'm looking at you Ford). These engine are like Lego blocks. You build whatever you need or can afford.

[@jonellwanger7258]

hochhaul yep... been a stout big block gear head... but these are starting to creep into my view... my current big block has 520 ft lbs at 2800rpm, cubic inches!! But.... DANG!!

[@scotthooper5127]

Less then a minute into the video I'm like "hey! that's the elder wand!" then i had to go back and start the video again. LOL

[@philllsxga.7737]

Great video! I know the LS is a bad ass platform, I didn't know the LT is that sophisticated. All I know is my LT Silverado Rock's off road!!

[@daveg5393]

good info to know

[@Schaaker]

How do you link up the GM ecm to the chrysler bcm? Or is this not necessary? What about stock pedals, can they wire up to GM ecm? What about transfer cases, stock or upgraded?

[@Mrsamdunk]

So is the ecotech (the core block) (not including anything else) a block that has been previously used? I keep asking what the difference is and no one will tell me anything besides the vvt and di. Like the core block, has it been used before?

[@byates59]

I love Chevy small blocks! Thanks!

[@TheRealZJE313]

These are the truck and SUV can you show the LS and LT4 car engines cause I am pretty sure that the car engines don't have all those sensors you pointed out

[@tomtalamantez8934]

Oh, one other thing or question. When these swaps are done, how hard is the vehicle inspection process. What does the computer think it is? What engine management software is being used.

[@WranglerJKLS]

Depends on your inspection process, what jurisdiction are you in? We follow USEPA engine change guidelines and are working with the BAR and CARB in California for 50 state compliance. The powertrain(including transmission) run GM modules, operating systems and calibrations as required by the USEPA. The vehicle can be diagnosed like the GM donor vehicle using GM tools and software. There is no hybriding or hacking of the OS like with some swaps. The powertrain runs a GM engine and transmission not a Chrysler transmission and the harnesses are GM not hand built hot rod type. We maintain the redundancy and failure modes of the donor powertrain.

[@SpeedDemon88X]

Lots of good stuff, but a few things you said were incorrect. Overall good video

[@sewjeepinmama3437]

This is my favorite video 😍

[@reidspacer66]

Is there an a/c mount like you have lower left side but for a L96 motor. I have an L96 in my humvee but the motor had to be shifted to passenger side slightly. No room for a/c compressor. Left side mount would be perfect.

[@TheWowowo]

Great Video mate. Initially thought it would be about the LS3 6.2 in my 2016 Holden VF2 SSV (Chevy SS). Great to hear a bloke articulate with confidence......Gotta love the Made In China stamp on the billet bracket....hahahahahahahahahaha

[@user-ju3ns2cz1u]

What is the weight difference in the gen4 and gen5 6.2L? If you said it I missed it.

[@jamesdean6103]

That elder wand though

[@sirfancy7645]

GOOD VIDEO just wish the editing wasnt so hmm like everywhere lol its like i got a.d.d. from watching this=p but alot of good stuff here dude good job!

[@twinv63]

I like the wand you use. Is that from the very famous show? How much is the magical properties in the wand as far as you using the wand on that engine ?

[@WranglerJKLS]

Elder wand, most powerful wand in the World. Question is who is the master?

[@twinv63]

@@WranglerJKLS I agree I'm 56 and a very elderly person full of knowledge since I have been mechanizing for 40 years. lol I am.

[@Liysrigede]

Amazing, but what interest me the most, what stick wand do you use?

[@sewjeepinmama3437]

Elder wand

[@sinformant]

I understand you are talking about the lt platform, but my lnf 4cyl is direct injection and boy you should see the valves. I used to see oil in the inlet of the turbo and thought it was a leaving seal, I was wrong. Installed a catch can and weekly its have several ounces in it.

[@finaplexEOD]

Wait...wait ..i need more info on the headers bro. Great vid tho!

[@dawsonmacie6984]

Off idle torque is amazing gogo gaga :)) do you loose that kind of low low rpm torque if you mess with different cams?

[@destinationfer2]

its incredible how small and simple GM LT/LS/LT engines are! if KISS(Keep It Simple Stupid) was manifest in an engine it would be an LS V8!

[@pophamlarry]

So.... does this engine have a timing chain and gears? Like the older sbc motors had? Or is the camshaft free of the crankshaft and totally controlled by the phaser?...

[@m.aldossary8495]

what is the different between l92 and l94 and what is the past? and please cab you but the differents by points ?

[@BigDipper907]

Awesome video lots of info thx. But u are way too cool for me w them sunglasses on my friend. Can’t wait to see u cast some spells tho 😂😂😂

[@FerasDishli]

Perfect, and direct explaining. Question please: What is the better oil for LT1 engine (2018 SS Camaro). 5w30 or 0w40 in your opinion ?

[@WranglerJKLS]

I think that would be dependent, outside temperature, mileage, use(track vs street...)

[@bobquattrini1787]

These motors are junk ...NO DURABILITY...

[@gregparrott]

Bob Quattrini Your opinion is in the minority. I don't own a vehicle with either the LS or LT engines. But from those I know that have them, they keep running just fine despite hard use. The only person I know who had trouble frequently revved his at 5500+ RPM for prolonged periods when towing a 10,000 pound trailer up several thousand feet elevation gains. The towing wasn't the problem. But his insistence on maintaining 65 to 70 mph while climbing was. This forced the transmission to downshift a couple of gears to bring the engine to max RPM and max horsepower. Eventually, one of his lifters failed. After the lifter was replaced, it has run fine for 2 years now.

[@mrrmsfucker146]

Let the dealer change that out. They use synthetic and it's still covered under the agreement. I bealive you get 4 changes a year don't forget.

[@osvaldoesquivel5633]

That lt1 looks different than the lt1 off my 94 impala, after they the same?

[@muhhar4484]

this guy knows his shit.. Well done pal

[@Valefjr]

Can I put in or swap in a 2005 Chevy Colorado 5l 3.5 in to a 2008 GMC canyon 4l 2.9 with out modifications ?

[@kansasadventure1831]

I'm looking to get an 09 or so 2500 . I've noticed alot of the v8 that have DOD end up with a failed lifter. Is that I only on certain motors? I'm using it for towing and hauling.

[@james-sz9un]

i dont think that shit is on the heavy duty trucks not sure tho

[@ldodom]

RE: 2020 6.6L gasoline. How will the addition of Direct Injection affect carbon build up? Thx

[@mattrebacz]

Good question!

[@jonellwanger7258]

Lol,he started to get into it, and then forgot it completely... 🤣🤦🏻‍♂️

[@1willubhave]

alot has changed...complicated, meanwhile I am still 20 years behind, the good ol industructable blocks 454-7.4L, 350-5.7L, 305-5.0L, 262-4.3L

[@chuckfults9256]

Those R motor 350's with Marine fuel rails, HOT DAMN!

[@TheRealZJE313]

Yes those are the good cast iron engine.did u know that u can get a LS 454 from summit it's just the block but it's brand new ready to start yo build

[@SugarHill28st]

you can get a gen 2 or 3 5.3 indestructible iron block and boost her to the moon I used to feel like you brother but I became sold

[@marccres6619]

Forgot the 5.3L 327 and 4.8L 283 brought them back for there geometry has less friction on cylinder walls and crank ,that equals higher rpm with less vibration.

[@oscarlongoria1817]

@@marccres6619 the 4.8 I believe is 293 or 294 cubic inches if I'm not mistaken look it up brother I know cause I have a 2005 4.8 I'm about to cam

[@robbybeaudoin6418]

I see there is clearance for the PSC steering box but will a PSC XD or XDII box fit?

[@WranglerJKLS]

It depends, XD1 or XD2? Camaro or truck drive. In general the XD box's are tight but we have done it. If your running a ram we recommend using the standard ported PSC box.

[@ramolokikhanye9122]

Some people are very talented🙆🙆🙆🤞💥

[@DavidisNice]

Would the LT1 fit into a MR2?

[@MTT-ic3ci]

My experiences LS for Tuning LT for Technology