This engine is absolutely stunning!! The idea that an American car manufacturer built this engine is really inspiring. Who ever got the top brass at GM to sign off on this deserves a medal. Incredible job 👍👏
It seems to me that we are quickly approaching the zenith of the internal combustion engine in real time. Definitely bittersweet but an awesome time to be alive!
@@graphitedak04 very surprised GM spent this much money in engineering going the opposite way of what all the others are going (EV, hybrid, and small turbo engines)
I never thought about cross plane air management within the case until now, the way he explained the benefits of managing the air pressures, oil myst...etc, to create a vacuum for the internals to move through really taught me something there. Great quick video of an undoubtedly amazing engine.
Unbelievable amount of engineering goes into this. Absolutely fascinating. My first car was a 1972 Duster that had a 198 in it. I could work on it, this new LT6 , no way. Thanks for posting this . So glad you were able to have Dustin on to explain it.
This is the deepest into detail I've ever heard GM go when describing one of their motors. I definitely enjoyed this video. Tech has made the exotic engine far easier to build, and maybe it's not quite mainstream yet, but it's certainly gotten closer to mainstream than it's ever been. Nice. Very nice.
This is what I was looking for , great presentation btw by this employee . You can see the glitter in his eyes that he is proud of it . And rightly so .
This was a highly informative commentary. Actually this is one of the best short walk throughs I have ever seen for any engine. Gardner does it all in ten minutes. Congratulations, Jeremy, for getting his full and very capable attention. First rate.
I'm a Ford guy, but I'm really excited about the performance potential of this engine. And it's only going to make it's competitors have to strive to build better engines too. I can't wait to see how a new Z06 will perform!!
I confidentiality say GM has started a revolution in the sport car industry. I am now a GM supporter as I wasn't prior to this marvelous piece of technology. Great JOB!
You've scored the ultimate interview! Some are saying this leapfrogs Fords version! Owner miles will tell. It's all about the cam train holding tolerance at the tappets. The shim system with solid lifters is the key! Apparently it's survived their test stages. Could be a better mousetrap.
I'm not a sub, I stumbled upon this content. What solid results. Again, this was a refreshing and welcome change to the approach of all too many interviewers. Yes, your subject knew this material inside and out, delivering design facts and approaches with knowledgeable confidence.
Man so much innovation in every section of the engine, no wonder the engine is so freely making that much horsepower. And For a small block 5.5 V8 mind you Well done GM
How in the Hell is this lighter than an LT2-4?? This is amazing! I recently built my 5.4 Ford GT500 4cam engine, but this thing is worlds apart! Just amazing!
Thanks Jeremy, this is an awesome video showing the internals of the LT6 engine. You knew the right questions to ask, and just let the engineer speak. But you know, no matter how much performance is in a new engine, there are guys out there already plotting to make more with it. The week after the Z06 goes on sale, there's going to be guys with 8mm stroker kits pushing the engine out to 6.0 liters, and longer duration cams pushing the revs up to 10,000 rpm. (I think it'll get there.)
there's a female youtuber that twin turbo'd a c-8 with almost no miles on it...there's another video of her inspecting this new z-06, i'm sure she'll be one of the first ones as soon as she can get one
Look at that intake tract!!! Straight as a ruler!!! Looks like something exotic going on with piston rings... More questions. Another half-hour with that Engineer, please. "A work of art." Yes, indeed it is!
@@fordmud the engine is quite simple actually. They went full mechanical on alot of things. Having the rotating assembly run in a vaccum is quite a good idea but normally that is reserved for race engines becausr you need air/oil separators in the oiltank
@@tommyhallum2054 this engine, unrestricted by emissions will push 800hp at 9000rpm with just a set of cams. Its rpm limited because of the transmission....but if someone does not care about transmission reliability lol
Amazing! No wonder this has to be a hand built engine. It's interesting how GM launches the Z06 which has a hand-built rear mid-engine V8 and AMG launches the SL which has a hand-built front mid-engine V8, both in the same week! If EV's are the future, then this is the last big harrah for true enthusiasts, so get 'em while they're hot! Limited time only, lol!
Hand built 🤣🤣 The engineer bragged about the robot chosing the valve lash caps for assembly. Lifetime solid valevtrain lash . That is a physical impossibly , roller valevtrain lasts longer but still wears.
@@madmagyver9981 thats my only concern the solid valvetrain, I think thats going to be a problem after a few thousand miles. Its gonna start ticking and without being able to adjust it.
@@Jimmyxsx Do you think they didn't already put a few dozen of these engines through 100,000 miles each on a test stand? That they are going to release these to the public with that oversight and just brush it off?
@@VexChoccyMilk tests don’t always prove accurate, the LS7 had valves dropping into the cylinders lol tests vs real world are two very different things
Would add the C4 ZR1 had an OH 4 cam, 32 valve setup and it ran really well with no reliability problems. Designed by Lotus, built by Mercury Marine for Chevy. Can you believe it ?😎
@Skip R I believe that was the other way around. The production Northstar V8s predate the heavily modified IndyCar design, which itself was adopted later on into the Northstar LMP cars.
The DOHC system is similar to how motorcycle designs are but how is there no valve adjustment? The valves WILL wear into the seats eventually... What keeps them from tightening?
I have a GT350 and love the sound of the flat plane but flat plane cranks have vibration issues and typically have less long term reliability. I hope GM has solved that with weight management. The tech in this engine is awesome. Gotta get one now.
There's a write up on one of the car magazine sites, I think car and driver or motor trend where they talk about what was done to cope with the vibrations of the engine.
@@RepEvox re: "I'm probably wrong, but the issue with the GT350 engine is block related." indeed, a block negatively affected/effected by vibrations. cast aluminum cracks, that's just what it does (ref CNC billet blocks). though many have failed due to the bottom end letting loose, a few Voodoo engines have failed in this specific way with the rotating assembly still fine.
@@joshuapullins8815 re: "I think car and driver or motor trend where they talk about what was done to cope with the vibrations of the engine." Formula One baby...!!! increase bore size, shorten the stroke. #OVERSQUARE
The biggest issues with the Voodoo were the bore to stroke ratio and rod lengths creating insanely high piston speeds, coupled with a crank design that inherently vibrates more than a traditional flat plane design. For a design that is already prone to high levels of vibration, they added more reciprocating mass than you'd normally see in this design. And they made it so the overall forces present during the time the pistons dwell at the top/bottom of the stroke and have to decelerate/accelerate make for a lot of stresses. Couple those higher amounts of primary vibration with higher amounts of secondary vibration, and you essentially have a time bomb. Some improvements did help longevity in the later years. With the LT6, they've gone with the traditional fpc design, and gone with a very oversquared design with a pretty short stroke. Very similar to what was commonly done in the past with Indycar and F1 V8's to help them survive extended periods at extremely high rpms. Plus using connecting rods that probably weight about as much as feather with lightweight forged pistons very similar to what you see in modern Superbikes (these look very similar to the pancake pistons in the Ducati Panigale engines), I don't see excessive vibrations being an issue. Time will only tell though. But I'm sure they've done hundreds of hours of rpm sweep testing on their gimbal dyno.
Amazing to see and understand the sheer amount of design and blueprinted engineering that GM went into to get this level of performance. Things that in most cases may have been done before, but only partially and not taken to the level Chevy did here (like the intake tuned velocity stacks…these have been around for decades, but no one thought to put them inside a manifold then vary their shape and location along with outside air control valves to make more power?). It will be very interesting to see the longevity of this powerplant once it hits the street. I know Chevy has been running it in the C8R but that version is limited to about 400 HP, so let’s see how it goes at 670. Nice video man, and I saw Clarence of CGarnerSpeed video bomb! 😎😳😁🤙🏻
They already were at their witts end there, it’s been done. Push rod engines can not sustain those power levels for many reasons. Pushrod deflection, coilbind, and valve float all lose power do to the nature of that type of engine. Also, the air scavenging efficiency is much greater with the 4 valves in this DOHC engine than a 2 valve engine, and all done with less displacement.
How hard would it be for GM to turbocharge this engine? They might need a completely diffrent intake set up and this seems very integrated into the block. Just imagine this engine running a cool 8 psi could very well be 1000hp.
It can probably handle single digit psi of boost on high octane fuel and not need to be cracked open to lower the compression. It looks to have variable valve timing and with that it can probably be tuned (along with intake plenum tuning) to lower the dynamic compression ratio so that the extra air pressure doesn't cause problems. I have a high-ish 10.4:1 static CR engine and it has over 80k miles on 10psi of boost running crap 91 Octane California gas and it has survived just fine by managing the variable valve timing under heavy boost. Some would argue it's wasting HP, but if the HP makes the engine go boom then it wasn't your HP to begin with. The boat anchor to boost will be the ECU. I doubt GM will allow people to manipulate it any time soon and unless someone goes the same route as current C8 tuning (piggy-backs) it won't matter.
I’m wondering if turbos or a supercharger would be best? I’ve heard from my dealer that the C8 ZR1/Zora will have all the bells and whistles with some kind of boost, but I can’t recall if he said it was with the Chevy 6.2 or this new 5.5 motor. Anyone know better details?
@@tg0003bpa Thanks very much, I believe that’s pretty close to what I heard too…maybe twin electric motors on the Zora, single on the ZR1. Thanks for jarring my memory!
Watershed moment for North American engine design and development ..total game changer ..12.5 to 1 CR is unbelievable ...hats off to GM for going there !!
From what I have seen this is the most intricate and fascinating mechanical technology ever created in North America. I stands as a world leader in horsepower and is second to none!
This LT6 is an real engine's masterpice , engine of the year award.I just have one suggestion: Can you put titanium air-pneumatic springs valve system to have more responsive, efficient, lighter, silent and durable springs for high revs can reach 9000rpm easily than the conventional springs valve system more heavy, less responsive, noisy.The air-pneumatic springs valve train controlled by an electro-pneumatic solenoid valve positioned near the camshaft and all valve train system controlled by the ECU allows easily intake and exhaust valve lift sytem(VVLT)for most power,responsive and fuel eonomy engine without the bulk and mass compared to conventional springs.Pre-start procedure of a little electric air compressor at 250 bars by the alternator to prepare the pneumatic valve springs just before the complete start of the engine similar like MotoGP engine, it's a two-stage quick start engine.
JUST SHUT UP AND TAKE MY MONEY!!! This looks amazing i just hope it performs as advertised, i wonder how the aftermarket is gonna handle this engine. Looks hard to mod though
Dam gm has made a dual over head cam flat plane engine, seems like someone else has done that I can’t remember tho. But I do like the knew cam rocker arm combo tho.
This engine is absolutely stunning!! The idea that an American car manufacturer built this engine is really inspiring. Who ever got the top brass at GM to sign off on this deserves a medal. Incredible job 👍👏
Yeah pretty much also considering it’s hard to make TQ on this design they are over achieving so yeah this is sure one heck of an engine.
@@JerryJrsGarage a light car with ultra moder transmissions just don't need low speed torque like a 1970 Buick
@@baby-sharkgto4902 Right which is also why sport bike frame just has an engine hanging there lol. It’s light.
@@JerryJrsGarage Actually, it's because the engine is a stressed part of the frame.
I would expect nothing less than the best from an American manufacturer. This should be the expectation.
The LT6 HAS to be the motor of the year. It is a technological marvel.
Amen, u said it!!!!
I wish they made it a hot-v like they did the engine in the short lived CT6-V Blackwing. 4.2L DOHC Twin Turbo. 550HP and 640tq.
It seems to me that we are quickly approaching the zenith of the internal combustion engine in real time. Definitely bittersweet but an awesome time to be alive!
@@graphitedak04 very surprised GM spent this much money in engineering going the opposite way of what all the others are going (EV, hybrid, and small turbo engines)
should make up for DOHC Northstar junk pile
I never thought about cross plane air management within the case until now, the way he explained the benefits of managing the air pressures, oil myst...etc, to create a vacuum for the internals to move through really taught me something there. Great quick video of an undoubtedly amazing engine.
This is why the LS6 motor had big holes drilled in the main webs to allow bay to bay breathing.
Offenhauser was doing that in the 60s with wet intake manifolds, my dual port 360 runs circles around everything else
Kind of like the reverse of Expansion Chambers for the 2 stroke engines !?
Tight tolerances.
Racers put a vacuum port on the exhaust to pull a vacuum on the crankcase. But you can get a lot of oil in your exhaust doing that.
Great time to be alive. GM has most definitely put everyone on notice
The LT-5 in my C4 ZR-1 makes me smile this makes my face crack open!
That's what this engine design reminds me of.
I looked your engine up a d it’s pretty cool. I didn’t know they made a c4 zr1
I agree! I have a '91 and it sure is a smile per mile.
Have a 92, #500 red/red. Love the car but it eats starters like crazy and the seals for the intake are getting expensive and hard to find.
@@bobolulu7615 those cars are still very fun drivers but very collectable.
Unbelievable amount of engineering goes into this. Absolutely fascinating. My first car was a 1972 Duster that had a 198 in it. I could work on it, this new LT6 , no way. Thanks for posting this . So glad you were able to have Dustin on to explain it.
Mine was a 71 slant six 225!
Beyond replacing spark plugs, change oil and filter and walnut blasting the intake valves, what would you need to do?
@@machtschnell7452 exactly you don’t need to “work” on these engines that’s the whole point.
This is the deepest into detail I've ever heard GM go when describing one of their motors. I definitely enjoyed this video. Tech has made the exotic engine far easier to build, and maybe it's not quite mainstream yet, but it's certainly gotten closer to mainstream than it's ever been. Nice. Very nice.
This Chevyrari engine is a piece of art. Thanks for sharing.
#FORVETTE
This is what I was looking for , great presentation btw by this employee . You can see the glitter in his eyes that he is proud of it . And rightly so .
Looks like a great deal of thought and engineering went into this engine. Let's see how it performs over time.
This was a highly informative commentary. Actually this is one of the best short walk throughs I have ever seen for any engine. Gardner does it all in ten minutes. Congratulations, Jeremy, for getting his full and very capable attention. First rate.
Thank you!
This LT6 is an Engineering Masterpiece ! 🤯🤯💪💪🥇😉👏
Thanks Jeremy for taking the video and Dustin for the juicy details!
I'm a Ford guy, but I'm really excited about the performance potential of this engine. And it's only going to make it's competitors have to strive to build better engines too. I can't wait to see how a new Z06 will perform!!
This is art. Beautiful swan song for the NA V8.
0:50 - "the LT6 this is truly (some) clean shit..." yup, that's damn right. 👌
Brilliant engineer and great interview.
Dude knows his stuff
I’ve been an “anything but Chevy” guy for most of my life but I’m extremely impressed by this
I confidentiality say GM has started a revolution in the sport car industry. I am now a GM supporter as I wasn't prior to this marvelous piece of technology. Great JOB!
You've scored the ultimate interview! Some are saying this leapfrogs Fords version! Owner miles will tell. It's all about the cam train holding tolerance at the tappets. The shim system with solid lifters is the key! Apparently it's survived their test stages. Could be a better mousetrap.
I'm not really a fan of Chevy's vehicle designs from a visual and ergonomic standpoint, but this engine is an engineering work of art.
Like my son says “, GM make a great engine to put in a not so great car.”
12.5 to 1 compression on pump gas no less. Very efficient I'd say also very expensive.
Z06 Officially an exotic car now with this amazing jewel of an engine
This block is very strong and nice engineering 😭🙈🔥
The engineer guy Dustin is very well versed in his knowledge of the New LT6 engine. Very impressed with him and this work of Art from Chevrolet.
way to go GM. Finally
Dustin is a motor god! Thanks for.sharing. This dude needs a pay raise !
I'm not a sub, I stumbled upon this content.
What solid results.
Again, this was a refreshing and welcome change to the approach of all too many interviewers.
Yes, your subject knew this material inside and out, delivering design facts and approaches with knowledgeable confidence.
Thanks for posting, Jeremy. Have fun👍
This is the video I was looking for, insight into those gorgeous guts, thank ya kindly.
Me too!!!
Me three 👌🏻
Magnificent piece of highly intelligent work...Thumbs up to all who made it happen👍 👌
Man so much innovation in every section of the engine, no wonder the engine is so freely making that much horsepower. And For a small block 5.5 V8 mind you
Well done GM
It’s basically a lower maintenance race engine. That’s awesome.
How in the Hell is this lighter than an LT2-4?? This is amazing! I recently built my 5.4 Ford GT500 4cam engine, but this thing is worlds apart! Just amazing!
Its not lighter, they said 1kg heavier.
"Clean shit of paper" lol
Thanks Jeremy, this is an awesome video showing the internals of the LT6 engine. You knew the right questions to ask, and just let the engineer speak.
But you know, no matter how much performance is in a new engine, there are guys out there already plotting to make more with it. The week after the Z06 goes on sale, there's going to be guys with 8mm stroker kits pushing the engine out to 6.0 liters, and longer duration cams pushing the revs up to 10,000 rpm. (I think it'll get there.)
Andy Harman: Yup…was thinking same thing. Bet some street racers will figure out how to remove that 8600 rpm fuel limiter so it won’t starve the revs.
there's a female youtuber that twin turbo'd a c-8 with almost no miles on it...there's another video of her inspecting this new z-06, i'm sure she'll be one of the first ones as soon as she can get one
Thanks, Andy. Some commented that I didn't talk back enough. I'd rather keep my mouth shut and let the expert talk. :)
There are always fools out there that think they can know no more then what the engineers know.
@@richardbaumgart2454 She it's merely an ornamental mouthpiece for the guys that do the work and they're not that bright.
This is it, folks. The pinnacle of natural aspiration. It will take a miracle to top this motor. 670hp without boost... UNREAL.
I agree with out Boost ! It must have an exhaust sound to die for !!
Cool engine, production is getting closer and closer to race technology.
Look at that intake tract!!! Straight as a ruler!!! Looks like something exotic going on with piston rings...
More questions. Another half-hour with that Engineer, please.
"A work of art." Yes, indeed it is!
@Skip R Yes, for sure.... They might have some offset
to lessen side-load.
Moving away from tradition is the best! Love that engine!
I cannot believe how compact they were able to make the DOHC valvetrain!
The heads are really not that wide compared to other DOHC engines. Voodoo and Coyote heads are significantly wider
Just look into '02-'03 Yamaha r1 engines. What they managed to fit under that little valve cover is amazing.
@@fordmud the engine is quite simple actually. They went full mechanical on alot of things. Having the rotating assembly run in a vaccum is quite a good idea but normally that is reserved for race engines becausr you need air/oil separators in the oiltank
What's crazy is that it still has over a 4" bore spacing which is significantly larger than the Coyote so it can be bored and stroked quite a bit.
@@tommyhallum2054 this engine, unrestricted by emissions will push 800hp at 9000rpm with just a set of cams. Its rpm limited because of the transmission....but if someone does not care about transmission reliability lol
A valve will never drop again in a z06 triple checked lol
That's some clean shit! 😆
This thing makes an electric car power train seem simple. Dustin did a great job explaining.
Thank you very much Jeremy! 👍
What a work of art. Hope someday I have the chance to own one.
Great interview on this mind-fu*ker of an engine! You did an awesome job filming & asking the right ? thanks for sharing!!!
Glad you enjoyed it!
Just awesome. Volumetric efficiency over 1 with no boost.
Amazing! No wonder this has to be a hand built engine. It's interesting how GM launches the Z06 which has a hand-built rear mid-engine V8 and AMG launches the SL which has a hand-built front mid-engine V8, both in the same week! If EV's are the future, then this is the last big harrah for true enthusiasts, so get 'em while they're hot! Limited time only, lol!
Hand built 🤣🤣
The engineer bragged about the robot chosing the valve lash caps for assembly.
Lifetime solid valevtrain lash .
That is a physical impossibly , roller valevtrain lasts longer but still wears.
@@madmagyver9981 thats my only concern the solid valvetrain, I think thats going to be a problem after a few thousand miles. Its gonna start ticking and without being able to adjust it.
@@Jimmyxsx Do you think they didn't already put a few dozen of these engines through 100,000 miles each on a test stand? That they are going to release these to the public with that oversight and just brush it off?
@@VexChoccyMilk tests don’t always prove accurate, the LS7 had valves dropping into the cylinders lol tests vs real world are two very different things
@@Jimmyxsx LS7 was released 15 years ago
Can’t wait til the guys start dropping these in 70s and 80s Chevys. Wouldn’t mind having this in my 83 Lac coupe and 85 caprice coupe
Nice to see James Hetfield's car collection in the background. Metallica!
I spotted that too. Lol
I thought that was him on the wall.
Had to rewind because I got distracted by those at first.
The Z06 is gonna be game changing
Seeing an overhead cam GM V8 is giving me Northstar PTSD flashbacks
Well starting with the major overhaul for 2004 with the LH2 rear drive variant, the Northstar is a good engine. It only took 10 years.
Would add the C4 ZR1 had an OH 4 cam, 32 valve setup and it ran really well with no reliability problems. Designed by Lotus, built by Mercury Marine for Chevy. Can you believe it ?😎
The flaws of Northstars were eliminated with the LC3; at its release, it had the highest HP per liter of any production engine…
This is a motor that shares a lot of its design with an endurance racing motor, something GM knows how to build very well
@Skip R I believe that was the other way around. The production Northstar V8s predate the heavily modified IndyCar design, which itself was adopted later on into the Northstar LMP cars.
And Gm Just Made the ZZ632 Wow they really pumping out the horsepower I love it, it’s almost like the muscle car era all over again!!
Got our new yellow C8 and love her
Lol at 0.52 clean "shit"/ sheet of paper. Nice save , funny as hell.
Wow《☆》Lots of innovation on the LT6👍🤓
Wow ! What an engine !
Thanks for sharing.
There's my friend Jeremy! Great video sir!
Thank you!
The amount of torque they're getting out of this volume on pump gas alone is INSANE!
the supercharged 6.2 puts out 200 more ft.lbs. though being only .7l bigger
@@richardbaumgart2454 but how much displacement is the supercharger, because you have to add that displacement to the one from your engine
The DOHC system is similar to how motorcycle designs are but how is there no valve adjustment? The valves WILL wear into the seats eventually... What keeps them from tightening?
supposedly the special coating i think sounds troublesome to me...time will tell
this gotta be the best value of engines out there
I have a GT350 and love the sound of the flat plane but flat plane cranks have vibration issues and typically have less long term reliability. I hope GM has solved that with weight management. The tech in this engine is awesome. Gotta get one now.
There's a write up on one of the car magazine sites, I think car and driver or motor trend where they talk about what was done to cope with the vibrations of the engine.
@@RepEvox re: "I'm probably wrong, but the issue with the GT350 engine is block related." indeed, a block negatively affected/effected by vibrations. cast aluminum cracks, that's just what it does (ref CNC billet blocks). though many have failed due to the bottom end letting loose, a few Voodoo engines have failed in this specific way with the rotating assembly still fine.
@@joshuapullins8815 re: "I think car and driver or motor trend where they talk about what was done to cope with the vibrations of the engine." Formula One baby...!!! increase bore size, shorten the stroke. #OVERSQUARE
@@RepEvox re: "I think the point I was making is the weak point was the plasma coating for the cylinder walls." yes i know, but BOTH are issues.
The biggest issues with the Voodoo were the bore to stroke ratio and rod lengths creating insanely high piston speeds, coupled with a crank design that inherently vibrates more than a traditional flat plane design. For a design that is already prone to high levels of vibration, they added more reciprocating mass than you'd normally see in this design. And they made it so the overall forces present during the time the pistons dwell at the top/bottom of the stroke and have to decelerate/accelerate make for a lot of stresses. Couple those higher amounts of primary vibration with higher amounts of secondary vibration, and you essentially have a time bomb. Some improvements did help longevity in the later years. With the LT6, they've gone with the traditional fpc design, and gone with a very oversquared design with a pretty short stroke. Very similar to what was commonly done in the past with Indycar and F1 V8's to help them survive extended periods at extremely high rpms. Plus using connecting rods that probably weight about as much as feather with lightweight forged pistons very similar to what you see in modern Superbikes (these look very similar to the pancake pistons in the Ducati Panigale engines), I don't see excessive vibrations being an issue. Time will only tell though. But I'm sure they've done hundreds of hours of rpm sweep testing on their gimbal dyno.
Four into two into one headers were called Tri-Y headers on the 1965 Ford Shelby GT350
Great information from Dustin!!! Thanks 8400RPM!!!
Well done my friend. Luv the details
Flat Plane Crank was used in Fords 1939 GAA V8 DOHC 1,100ci
The level of knowledge Dustin has is truly impressive.
Yeah, well he and his colleagues designed it, so ....,
Listening through a MASK is a waste. Excellent work GM/Corvette
best video, have been looking for this one
Amazing to see and understand the sheer amount of design and blueprinted engineering that GM went into to get this level of performance. Things that in most cases may have been done before, but only partially and not taken to the level Chevy did here (like the intake tuned velocity stacks…these have been around for decades, but no one thought to put them inside a manifold then vary their shape and location along with outside air control valves to make more power?). It will be very interesting to see the longevity of this powerplant once it hits the street. I know Chevy has been running it in the C8R but that version is limited to about 400 HP, so let’s see how it goes at 670. Nice video man, and I saw Clarence of CGarnerSpeed video bomb! 😎😳😁🤙🏻
Is that James Hetfield from Metallica on the walls in the background?
Yes, I was at Petersen in mid June and Hetfield's cars are on display there.
they should build a push rod engine with these materials to see how light they can get that engine. also use the flat plane in that.
They already were at their witts end there, it’s been done. Push rod engines can not sustain those power levels for many reasons. Pushrod deflection, coilbind, and valve float all lose power do to the nature of that type of engine. Also, the air scavenging efficiency is much greater with the 4 valves in this DOHC engine than a 2 valve engine, and all done with less displacement.
Wow that is a thing of beauty!!!!
And for the tunner hot rod guys they made sure to keep it over a 4" bore spacing which is awesome.
Yes. Same bore spacing as the LS series.
WOW......Just, WOW!!!!!!!!!!!
How hard would it be for GM to turbocharge this engine? They might need a completely diffrent intake set up and this seems very integrated into the block. Just imagine this engine running a cool 8 psi could very well be 1000hp.
For sure!. Just gonna have to lower compression a bit but 8psi should be more than enough to squeeze a couple hundred hp out
It can probably handle single digit psi of boost on high octane fuel and not need to be cracked open to lower the compression. It looks to have variable valve timing and with that it can probably be tuned (along with intake plenum tuning) to lower the dynamic compression ratio so that the extra air pressure doesn't cause problems. I have a high-ish 10.4:1 static CR engine and it has over 80k miles on 10psi of boost running crap 91 Octane California gas and it has survived just fine by managing the variable valve timing under heavy boost. Some would argue it's wasting HP, but if the HP makes the engine go boom then it wasn't your HP to begin with.
The boat anchor to boost will be the ECU. I doubt GM will allow people to manipulate it any time soon and unless someone goes the same route as current C8 tuning (piggy-backs) it won't matter.
I’m wondering if turbos or a supercharger would be best? I’ve heard from my dealer that the C8 ZR1/Zora will have all the bells and whistles with some kind of boost, but I can’t recall if he said it was with the Chevy 6.2 or this new 5.5 motor. Anyone know better details?
@@45auto82 should be 5.5L turbo for the zr1 and 5.5L turbo plus hybrid on the front wheel for the zora from all the leaks I heard
@@tg0003bpa Thanks very much, I believe that’s pretty close to what I heard too…maybe twin electric motors on the Zora, single on the ZR1. Thanks for jarring my memory!
This thing makes a coyote look simple.
When this thing breaks down it will be one expensive repair bill. A lot of complexity, hopefully its as reliable as the LS engines
Watershed moment for North American engine design and development ..total game changer ..12.5 to 1 CR is unbelievable ...hats off to GM for going there !!
Pretty cutting edge for a NA motor. As long as the eccentric shaft for the fuel pumps works well, 8t could be a durable winner.
I'm watching and it cut-off at the end? Now I have to search for another UA-cam Post... ;-( Great thow!
Damn forged bottom end. Can't wait to see two turbos on one of these. Hopefully they respond like the coyotes
You mean they don't respond like a coyote engine
Wow GM is stepping it up beautiful motor lots of technology love it
I just gotta stop and comment the appreciation for the metallica concert in the background!!
That is the neatest engine I have ever seen. In a Chevy Vette. Fuck yeah.
Assistant To the chief engineer
12.5 Compression ratio. It’s a good thing that premium gas is in the 5 1/2 dollar range these days.
Mr. Moore, $8.59 already in California and it's only 91 octane. I filled up all my street legal bikes today for $3.59, and it's Top Tier 93 octane.
They threw EVERYTHING they could into this beautiful engine. I hope they avoid any "gotcha" design issues. Long live the IC engine.
From what I have seen this is the most intricate and fascinating mechanical technology ever created in North America. I stands as a world leader in horsepower and is second to none!
Amazing and the info I was looking for
If you please sir? Will you please put one in my 09 Pontiac Solstice GXP Coupe? Thank you 😊
This LT6 is an real engine's masterpice , engine of the year award.I just have one suggestion: Can you put titanium air-pneumatic springs valve system to have more responsive, efficient, lighter, silent and durable springs for high revs can reach 9000rpm easily than the conventional springs valve system more heavy, less responsive, noisy.The air-pneumatic springs valve train controlled by an electro-pneumatic solenoid valve positioned near the camshaft and all valve train system controlled by the ECU allows easily intake and exhaust valve lift sytem(VVLT)for most power,responsive and fuel eonomy engine without the bulk and mass compared to conventional springs.Pre-start procedure of a little electric air compressor at 250 bars by the alternator to prepare the pneumatic valve springs just before the complete start of the engine similar like MotoGP engine, it's a two-stage quick start engine.
JUST SHUT UP AND TAKE MY MONEY!!! This looks amazing i just hope it performs as advertised, i wonder how the aftermarket is gonna handle this engine. Looks hard to mod though
Dam gm has made a dual over head cam flat plane engine, seems like someone else has done that I can’t remember tho. But I do like the knew cam rocker arm combo tho.
Individual trumpets in the intake, just like Fords 2004 5.0L FR500 intake
Never have too touch that valve lash again… until we start modifying them…
Another new motor from gm! Wow this LT6 is amazing! Now imagine it makes boost!
Never thought I’d live to see it. OHV. Wow, it’s a new day for General Motors. Velocity stacks, shared plenum. Twin throttle bodies.
Very informative! Thank you!