C8 engine failure
Drifting
Joined: Jul 2019
Posts: 1,766
Likes: 1,244
From: Central Texas
St. Jude Donor '21
Race Director
Joined: Aug 2019
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From: Central Illinois
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 34,937
Likes: 12,350
From: NE South Carolina
Sorry for the OPs problem BUT where the hell are you getting your statistics. Few engine failures reported. Piston coming apart is 1st I have seen. Yep there were a few cars with valve spring failures mostly with less than 500 miles. However that was for small blocks in several cars NOT just the C8.
Yep crap happens. Some failures "Of Anything" can occur with what is called "infant failure." They occur from a defective part not detected in normal QA.
Yep crap happens. Some failures "Of Anything" can occur with what is called "infant failure." They occur from a defective part not detected in normal QA.
Le Mans Master
Joined: Jul 2013
Posts: 5,191
Likes: 3,388
From: Morrill Nebraska
Don't buy their products if you don't like them. My last three Corvettes have had something wrong with them but I still buy Corvettes. Even with their few shortcomings they are still kick *** cars!! I still get a smile on my face every time I drive mine. 
Last edited by robertbruce; Oct 4, 2021 at 06:59 AM.
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 34,937
Likes: 12,350
From: NE South Carolina
Funny, of the 5 Vettes I have sold on my own my 1st, a 1988, was the only one where the buyer spent 10 minutes looking for the engine number. I told him I guaranteed it was the one that came with the car! He said that didn't mean it was not changed! He said on the assembly line IF the car engine fails they replace it with another! He found it and paid me!
No one ever asked when I sold my 1993, 2008, 2014 Z51 or my 2017 Grand Sport!
I understand engine #s are not longer recorded or matched with VIN. Makes sense since they make engines in Tonawanda NY and they are NOT made for a particular VIN number. As the C8s are built in BG an engine is installed IT WAS NOT MADE FOR YOUR VIN!
Last edited by JerryU; Oct 4, 2021 at 06:58 AM.
Racer
Joined: May 2009
Posts: 422
Likes: 73
From: Dallas, Texas
I think only the Krauts are that **** to match VIN’s with engine numbers. I know my old ‘73 911 had the engine number matched to production.
I’m not sure the number was identical but the engine number was recorded when the car was produced and you can find that.
I’m not sure the number was identical but the engine number was recorded when the car was produced and you can find that.
Last edited by Devereaux; Oct 4, 2021 at 07:06 AM.
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Burning Brakes
Joined: Aug 2019
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Since you seem to be all knowing, I'll ask you. What percent of the 50K C8 owners participate in "C8 General Discussion" on this forum?
Le Mans Master
Joined: Nov 2001
Posts: 6,904
Likes: 205
From: Kern County CA
All these mechanical failures are truly unbelievable to me. I've frequented Porsche, Jeep, Lexus and Subaru forums over the last 20 years. I'm still kind of a newbie here and keep going back and forth on whether or not I want a C8. I bought several new Chevy's in the '70's and '80's including Corvettes, then all the quality issues and generally poor build got me looking for something better.
Anyway, sorry for what you guys with problems are going through. I guess that's the price you pay for belonging to the C8 club. Luckily, most have issue free cars but the problem ones see to be far too many as a percentage of the total.
Anyway, sorry for what you guys with problems are going through. I guess that's the price you pay for belonging to the C8 club. Luckily, most have issue free cars but the problem ones see to be far too many as a percentage of the total.
https://rennlist.com/forums/718-gts-...e-failure.html
Race Director
Joined: Dec 2000
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From: here
Melting Slicks
Joined: Nov 2013
Posts: 2,703
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From: Annandale VA
Chevy has built well over 100 million small block V8s since 1955. You would assume they could build them to last 1000 miles at least 99.9% of the time, but apparently that is not true. Be glad you don't own a 5.3L.
Drifting
Joined: Jun 2021
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From: Phoenix, Arizona
I am sorry to tell you this but you need schooling. Both engines are great. It's just the LS may be the finest engine ever built.
Pro
Joined: Jan 2011
Posts: 526
Likes: 118
From: Morristown TN
It's painful to read a lot of comments on this forum coming from guys who have obviously not worked on or researched cars in depth in the last 25 years, but they're here giving tech advice all the same.
Melting Slicks
Joined: Nov 2013
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From: Annandale VA
Drifting
Joined: Apr 2021
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From: Chicago-ish
Race Director
Joined: Aug 2019
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From: Central Illinois
Hey, you're the one making the claim. If you understood statistics you would also realize the number of participating owners has very little to do with how many make a claim of failure. Some come here after a failure to learn more about it, or the best resolution. GM knows how many failures there have been vs. how many produced. Just saying there's a lot on here proves nothing.
Drifting
Joined: Jul 2019
Posts: 1,766
Likes: 1,244
From: Central Texas
St. Jude Donor '21
I think this is a misconception. Here's a link to a post that has a picture of where the partial vin is stamped, and a description of the original vs. replacement engine as well. Although, I'm not a subscriber to the "numbers matching" game, I seem to remember that having documentation of a factory warranty replacement is the key to minimizing that issue in the future.
Race Director
Joined: Aug 2019
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From: Central Illinois