LS7 CARNAGE: What Happened to this COMPLETELY DESTROYED Z06 Engine?!!!
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- Опубликовано: 23 ноя 2022
- HAPPY THANKSGIVING!
Absolute LS7 destruction! In this video I tear down the LS7 to see what happened when it let go. Absolute carnage! Time for some new parts!
Replacement engine is already on the way, so be sure to subscribe if you haven''t already to watch this hurt Z06 come back to life!
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This guy is a real gearhead, not one of these RUclips posers with flip flops and shades...
Samcrac?? 😅😂😅😂
Last time I looked he had 13k subscribers, up to 20k now! He deserves it for sure! One of the better channels out there
Thanks man!
That LS7 valve drop.
Result: The LS7 experienced immense *EMOTIONAL DAMAGE* ... Super Effective.
This guy knows his stuff...I shall knight thee "The engine Dr."
Knows What??? How to say Carnage?
Shout out to Greg for building a 36k mile engine. 😂
Greg didn't put the Texas Speed cam in there
@@bb5242 I was going to say, whomever tuned that car last is to blame for sure. With the cam, bet they raised the lmiter to like 7500 and it was singing well past its capability when it went boom.
And aside from possibly installing the cam in wrong, Greg didn't miss a gear and/or launch the motor or run the engine out of oil.
Also, could have been retuned lean. A myriad of reasons the engine could have failed that had nothing to do with the integrity of the LS7 as it was built from the factory.
People kill engines due to abuse more than they randomly fail. Most common failure is low oil level + high RPM. Mods can kill an engine too and tuning.
When you modify an engine that has adequate power like a stock LS7 which is plenty on the street, be careful what you wish for.
PS. Chris is very talented with wonderful temperament, methodical etc...all the right stuff including young and strong...but I cringe when I see engine work this extensive with nothing covering the fenders for protection. I know, he will run the orbital over the paint when all done but only takes one dropped wrench. Or...maybe the plan is a repaint. Paint doesn't look too bad to my eye but he may have other plans....from the peanut gallery.
@@lukewalker1051 nah. LS7 is simply junk like any other GM product. MOPAR or NO CAR baby!
LS7 exhaust valve seat wasn’t machined concentric to the valve guide thanks to Linamar Corporation who machined the heads for GM. Exhaust valve fatigues and breaks off. Destroys #2 piston and the entire LS7. That’s why I got both of my heads reworked by LPE.
On the LS7, it’s the exhaust valve that has the hollow stem and failure prone. The intake valves are titanium and usually wasn’t the issue.
yep its the exhaust valves that are hollow and have the issue
Yep
It’s not the valve, it’s the valve guide and valve seat that weren’t machined concentric to each other. Linamar Corporation machined the heads for GM and their(GM’s) quality control didn’t catch it or overlooked the problem. Valve heads don’t fall off just because they have a hollow stem. They break off from contact with the piston, over-rev/valve float, or in this instance poorly machined valve seats that fatigue the valve stem.
@@natez0690 100% correct. That's the LS7 valving issue that these are known for. Though, most of the time, they only kiss the piston after the valve works its way to the point of contact. This one looks like it took the valve and decided to play dodge ball with the rods and crank at, or around, 7k rpm. That's a lot of energy transfer if things aren't working smoothly.
Obviously not a stock LS7 with a stage one cam in her.
I'm in the same boat with you right now. I picked up a C5 ZO6 a month ago with the same issue. Previous owner blew up the motor and I was able to get the car for a steal. The valve spring broke, which is common on the LS6. Completely took out piston number one, valve, and a hole through the block. I was able to source a low mileage long block and in the middle of currently putting everything together. Good luck with yours!
Depending on the year its was a issue for the ls6. My 04. Is goin strong 130k
Talk about a grenaded engine! WOW! A coffee table sounds like a possible use, but I'm thinking more along the lines that it's nothing more than boat anchor. 🤣 But you're the artist so you'll do what you're going do. Looking forward to your next upload. Save the Wave 🙋♂
That Ls7 was NUKED! Man thanks for walking us thru the complete tear down. You definitely give me inspiration dude, you are driven AF to get it done. I have a few projects on my hand too. An 87 Grand National, 2007 Srt8 jeep, and a 2011 C6 Base. When I run out of gas, I'll look at one of your videos to give me a push! Thanks again and can't wait to see you finish this one up!
Wow that is a lot of carnage. Definitely satisfying to watch. Keep the great videos coming !
Been waiting for this episode for the past 2 weeks ! Really love the Zo6 content
My old 302 Ford did the exact same thing. Valve spring failure dropped one onto the piston and did a dance inside.
You are awesome Chris! I so look forward to my time to watch and learn. The car itself doesn't matter. It's your knowledge and skill. Thanks Man!
WOW ..... GREAT TEARDOWN! Thanks for showing the breakdown!
Happy Thanksgiving. Glad to see more subs are catching on to your excellent channel.
Reallly enjoy your C6 content, the clean filming & edit make it a joy to watch. Thanks from germany!
Great content and also enjoy your humor. Looking forward to the new engine install.
Super nice video Chris. Thanks for sharing, really enjoying this channel and learning tons.
Oh wowsers! Thanks for the tear down even though the engine will be replaced. Can not wait to see this C6z come back to life.
Chris thank you for taking the time and work to show us the worst carnage I have ever seen in a GM engine. That block damage is priceless. Looking forward to your progress on putting her back together👍🇺🇸
I will say I appreciate you showing the LS7 destruction I've heard of Pistons shooting through engine walls but I've never seen one before or anybody going through the intake to see what happened
Love that garage setup man. And happy Thanksgiving
Great video of the disassembled blown up LS7. Can’t wait to see the new motor and rebirth of this C6 !
I had an ‘07 ZO6, LS7. Chevrolet replaced the heads under warranty before that kind of damage could occur. I kept the warranty on the car until I sold it in 2018. Expensive, but it didn’t fail on my dime. Good video, thank you.
Jesus Christ dude, that’s some serious carnage! Times like this make me
Glad I opted for a GS. 😅😅.
Kudos to you for doing that work on the floor my man.
Wow that LS7 done blew up! More carnage than I expected. Sorry more engine components did not survive…love the coffee table idea…I believe the cam can be reground…love the series looking forward to the final product. Love your videos!
Thanks, very interesting. Anxious to see the next video. Blessings
Love the garage set up. That engine "blowed up real good.". Will ride again soon though. Great vids. Thanks.
Haha! "That was a lot of puke." 🤣
Can't wait till you work your magic brotha! Big blessings to you!🔥
Channels growing mate. Outstanding!!
LOL! The wife looked mildly annoyed, just like mine would've. Great vid and looking forward to you getting this beast rolling again Chris.
Bless her for helping,, My EX would not have even entered the garage...
Hey Chris. I don’t own a corvette. YET! I sat down today and watched each Vid. Amazing job sir. I’m just amazed that you went through that whole process on your own.👍👍👍
Great video man!! Well put together and very funny with the memes 🤣!!
Absolute carnage! Love the Z06 Content maybe one day I can get one!
From one motor head to another, love your work
Nice work! Sad to see the destruction but looking forward to seeing how it all plays out. And man you aren’t kidding about the power steering bracket & bolts. Happy Thanksgiving!
Stupid power steering bracket 🤣
Awesome video so far!!!!!!! Nice work.
Thx for sharing this video love to see how other people disassemble the C6 engine from the car, found a lot of tips and headaches issues here on RUclips 😅
“I’m gonna pull these off to get a better look at the aftermarket window in the block here” 💀
Really enjoyed the LS7 postmortem! I agree that the exhaust valve dropped & caused that cylinder’s chain reaction destruction.
Great video! My valve guides were shot at 40K miles. Replaced them and other stuff at 40K miles and sold the car to a dealer!
Been waiting on this!!!!! 👊🏽🔥👊🏽🔥👊🏽🔥👊🏽🔥
Can't believe you are doing all this work with no fender and front end protection!
Love the channel! You're just like me when starting a project, 2 or 3. 😆 🤣. Bag and Tag EVERYTHING!! Wife definitely loves it bc I'm at home. 😆 nicely put together shop! All I need is a lift! MERICA 🤟🏿
Glad I found your channel a few weeks ago - interesting stuff
When i saw you got this z06 for 15k i was a bit jealous, going through the steps building my 08z i realized how big of a financial commitment it is. I bought mine for around 42 grand and drove it for around 3 weeks before it spun a combination of 5 or 6 bearings, engine is totally gone; crank, cam, cylinder walls, pistons/ rods, and even the heads were crazy out of wack. I went from thinking I already kind of got ripped on this 42 thousand dollar 80k mile z06 which i thought was sort of clean to when its said and done around a 60k z06. Im doing everything right though, going fully forged, sleeved, max effort h/c/i and ill probably go for a 150 shot. Cant wait to see what you'll do with this z
Dont get too down. These cars are an insane value for the money. Won't be much that can touch it under under that 60k figure!
Was it all stock when you purchased it? Curious because I bought a 07 a year ago with 36k. Super clean and bone stock. I don’t race or even drive hard but seeing all of these rebuilds have me so nervous. Should I redo the heads? Or if it’s not broke don’t fix it? Btw sorry about your car man
@@shawnwuanOwned one for a bit over a year, get them done
42 k for a 80 thousand mile car,I am in the process of selling my 09 with 42thousand miles for 38k.
@@7318550239 The market for the c6 is starting to go down, your comment is 10 days old his is 2 months and he probly bought it a few months before his comment, around the peak of the market. Still when I was in the market last year low milage c6z was 40 to 45 no way I would pay 42k for one with 80k
Man props for not having a dirty oily floor I can’t even change plugs on my vette with out making a mess 😂
Welp. If a motor is blown up, might as well totally nuke everything in it. Still sorry to hear you couldn't salvage anything, though. Thanks for taking us through this journey.
At 9,400 miles I went way overboard. Crower shaft rockers, refurbished intakes, Del West used to do it for free, SS hollow stem exhaust valves, new springs, retainers and keepers. Threw out the buckets and went with link bar lifters. Having a junk head so the machine shop can test their math before working on a good head is helpful. I also put in a 4.10 gear when they came out years ago. Heads done in spring of 2016, put it to bed this fall with plus 30,000. Good luck, saw this exact example in the garage at the Vette museum in 2019.
I've got 2 C6Z's as well. I'm about to put my 3rd engine into the '08 track car. I've seen the exact same carnage. First blowup was on the stock engine after changing the differential and the gear ratio. Had to pull plugs to finally see that it was blown. I built it up with the 2nd engine (Texas Speed), and when it blew, the block disintegrated, but I guess the extra HP makes the carnage bigger. 3rd engine will also be TSP and will go in over xmas break. 2nd C6Z is a 2009 3LZ garage queen, all stock. 39k miles. Mine was a dropped valve both times, and I had the heads rebuilt and hardened before the first grenade, so go figure.
Happy Thanksgiving to you too!
I'm sure if Greg saw this, he's like damn that's my motor. lol
Great work and great video.
This young man has serious skills. Moreover, he doesn’t have some little helper like some of the other lightweights like Dustin and Teej have.
Amen to that PS bracket being a pain. Heads on my GS are off due to bent valve on cylinder 8. I have the same setup on my fox body but having room to work makes all the difference.
Def looks like an over rev. I'd take a good look at the trans too. A missed shift overspeed seems likely. LS7 CARNAGE! Thx for the video. I was waiting to see what happened.
It was definitely turning some rpm’s when it came apart.
I have a Katech 2006 H/C/I/E C6 Z06. Just rebuilt (myself) T56 and Diff last summer. Reverse was gone and the Diff was humming bad. So far so good on my engine. Your video gave me anxiety though, Lol. Love seeing DIY C6 content.
You've got a wicked collection of rides....👉😀
OMG! Your Amazing Bruv 💪👊
Good video and details Chris
👍
I had a 360 Magnum engine drop a valve, vaporize 2 pistons into powder which i found in the oil pan. You have a nice engine block table for the garage💪
love this series!
Blowed up real good !
Nice work, you can look into grabbing a set of quick jacks for just these occasions.
Geez what a disaster you did a amazing job cheers to you 🎉
I had the ZO6 back in 2009 , they were badass cars,and around 2010 the valves were dropping out of them, it was a big deal.. it required a full cylinder head rebuild and if you didn't do it this is what happens.
..are there any years (C6 Z06)that this wasn't a problem? 😮😮
nice work, thanks for the video. subscribed
Chris: New to your channel (Dodge/Kawasaki/former 5.0 Mustang) guy. Blown "street" motors has always leaves me shaking my head, car or motorcycle. This particular "damage" sets the bar though. Love your '69 Camaro, btw. Good video 👍.
That wall thickness is exactly why I'd never do a ls7 and definitely not do a power adder to one. Lol would need to be a lsx iron block with reinforced sleeves 😂
You are a God above men!
Entertaining. Thanks
Great job 👍🏻
Holy Shit! Nice job Greg! 😂
I’ve never seen a engine so mangled, shiieeettt😳
I feel your pain,jack stands and working on concrete.I have an 04 m3 and I had to replace diff bushings,and seal,axel boot ls,constant velocity joint.I did it myself and took two weeks to finish because of the laying on the concrete.I know the pain of concrete.
Great video, it is like vice grip garage, but with newer toys. It was a nice piece, and I think a little over rev wake the valve and beat it to death with a bent valve.
Excellent content dude. Hilarious. That LS7 is smoked
Fascinating videos. It's fun in that I actually understand all that you are doing, But, dont't ever ask me to actually turn a wrench! Anxious to see how this all works out. I'm 70 and always have desired a Corvette. Not a ZO6. Just a nice C6 or C7 to replace our 16' Miata.
Yeah... that will buff right out!
Soon as you pull the TB an see rings you know complete new everything
If you have a good scanner there should be enough info in freeze frame data when the carnage happened love the channel.
Imagine the boom when it let go. That much damage, it had to be loud
Man that hole in the block. Insane.
Good stuff 👍🏻
Its the exhaust valves that break of they are hollow ones.
Oh dude what carnage. Thats crazy.
The damage to the cylinder liner explains why they went back to the ls3 block, and made improvements when they decided to put boost on the ZR1.
Man I wish we where friends haha you could help me rebuild the old man 1976 Vet and put a LS7 in it if possible!!! That would be sweet. Love the videos you do a great job and keep it very Entertaining.
My money is on the "drysump"-system. It's well known that the stock system can't keep up with high Gs on the track, especially with (Semi-)Slicks. On the early engines especially, it's a problem with the scavenge stage of the oil pump. This results in aerated oil. The scavange-stage simply can't keep up with the pressure side. This is why they superseded the pump to the LS9 which moved a little more oil. Greetings from Germany!
EDIT: Ok. After seeing the crank, my best bet is now the exhaust valve =D.
Great video, but damn, now I'm freaked out about the motor in my Z06. I gotta spend some bucks to avoid spending bigger bucks. Oh yeah, nice garage too.
HERE WE GO AGAIN ANOTHER MONSTER BUILD
Can’t wait for the next video on the red vette.
I got a 06 I've had it for about 7 years now and last summer I noticed it sounded different I checked out the the red tank and it was low on antifreeze nothing came up and luckily I put antifreeze back in it and it's running great
You did a lot of extra work
youre in a good spot! now you can build your own motor up.
"Aftermarket window in the block"😂😂😂
I'm about halfway through this video but my guess is the original owner was repeatedly missing downshifts at the road courses he was racing at and over revving.
Such calm background music for the violence that was suffered
I subbed you 3 days ago and I think you do great work and I will be homeless soon so I try to watch you but not shure !!!
The Intro is Classic 😂
The cause of failure wasn't the valve or other internals. It was caused by the previous owner over revving the engine as he admitted. There are several good options for a new engine out there, so I am curious to see what you come up with. Good work so far!
Yeah but they have limiters right? In all honesty your car should be able to bounce off the limiter all day. You gotta idiot proof things sometimes even back in the day float would keep you from flinging it too high.
@@johnsheetz6639 I think for a car that is modified and raced, a tune will be required, and the tune could remove the limiter.
@@ktriebol now why would it? You can adjust a rev limiter to go with higher as low as you want why not put it at a medium safe speed? Enlighten me. Tuned is different than the rev limit my friend you have to have a limiter on a performance engine these days. There is only so far you want to go past the peak power RPM.
This car did have a cam so it probably did have a tune, doesn’t mean the limiter was removed though. It shouldn’t have been removed. My car failed in exactly the same way and it was bone stock
The previous owner states that he may have over-revved it, so you would have to ask him to get specifics.
What engine you planning on putting back in there? Stock or maybe a nice LSX build? Katech Engine perhaps? Thanks for tearing down the 427ci paper weight, that was fun to watch. Was most likely a valve drop that caused all that.....probably close to 7k rpm.