WICKEDFRC

Please reserve the poll for 2012 / 2013 C6 Z06 only.

Have you experienced any Heads/Valve Guide issues at all in your 2012 or 2013 C6 Z06? If yes, please elborate below.

This poll is generated because I am interested in purchasing a 2012/2013 C6 Z06 and want to make an informed decision. I have read and heard about quite a few issues on heads and valve guides up to this point and would like your feedback. The POLL is isolated to 2012/2013 C6 Z06. This is the year I am targeting. While I understand this is an ongoing issue for many years, it is a poll to gather facts in order to decide whether or not to pull the trigger on a 2012/2013.

In addition, if this is an ongoing issue since 2006, this is totally unacceptable from GM.

Thank you in advance.

gatti-man

You do realize it takes time to discover bad guides and most people won't pull their heads in a 12 or 13. How about you come back in three years then ask.

Nothing has been changed between the 09 and 12/13. Your chances are most likely the exact same as any other year to get bad guides.

RamAir972003

You really cant get a poll unless there has been 12 13 that you know of, I know of 2 2012 that have had valve issue. Mostly these cars are garage queens you wont find that out till thousands of miles down the road... I would change your topic something else simpler so you will get better results to your question... rephrase topic...

Jawnathin

As if there there weren't a thousand threads in this topic already. Tired of them

There are more threads talking about it than actual threads with failures at this point.

RamAir972003

Very true it would have been better topic like how many have changed there heads since 2006z has been in production, since the dropped valve issue.

97Black

Whoever voted yes to guide wear on a 2012 should elaborate.

VETTEMANN

Doubtful anybody with a 2013 has even checked yet to know if they have a potential problem...

WICKEDFRC

All,

Yes, I realize this takes time, but there are 2012's out there on the road and the 2013's are pushing out. As these individuals experience these issues, it will help capture a number associated with just how many are experiencing issues. I mean, I am excited to upgrade from a C5 into the C6Z performance world, but I am not enthusiastic to buy a brand new car and have it come direct "with known issues" that should have been addressed and fixed.

It seems as if many of us love the performance world of Corvette, yet willingly accepted these known defects. If C6 Corvette sales ceased immediately until the problems were 100% resolved (other than "if you have problems, come see us for an inspection"), perhaps GM would fix the issue.

The bottom line is, as long as the heads were manufacturered at the same location, by the same lowest bidding vendor, chances are the problem has not been addressed. But when I read the response from GM, it appeared to be a canned BS response in that "We fixed it. Drive and enjoy your car."

I been very excited to get into a C6Z and well, coming across all these valve guide threads is quite concerning.
Maybe I am missing something. Maybe I am over-reacting? I just don't see how C6 sales continue until this issue has been corrected, without flaw. If I am missing something and have little to worry about, please put my mind at ease. I would really like to step it up into a new 2013.

vertC6

The OP wants to know if there are any issues with 2012 -13, if that's what he wants his sample size to be than that is fine, if you don't like it or don't have a 12-13 than stay out of the thread. No one asked you if there were too many threads on this subject.

3 Z06ZR1

Each engine must have it's heads checked!

None are safe! No one is trusting GM!

gatti-man

Well it's a 70k car with a 2k problem that if left untreated after the 5 year 100k warranty expires can lead to a giant repair bill. Honestly after 5 years of driving I'd be pulling the heads anyways so its not a deal breaker. IMO what is most important is the knowledge to be aware of and fix the issue.

ATC399

My 13 will be long gone before the 5/100K is up..

RamAir972003

Why it will be a collectable, I dont think we will see any 427 motors from gm any more.

Mark2009

Agreed. I bought one well aware that I might have to drop $2K on the heads... although a PITA, not a deal breaker considering what the car is (and I did consider a C6 LS3 instead).

The most distressing part of the issue is not knowing exactly what to do to eliminate the problem, but that seems to becoming clearer by the day

I would check the heads, using at least the method John has outlined in another thread, on a brand new LS7 or one with 100K on it. Moreso on a new one, to hopefully prevent the guide wear process from even starting.

z51vett

2012 with 16000 miles no problems as of Feb 2011 they are doing 100% inspection time will tell. My Z06 was built Aug 2011 this was well after Feb 2011 start of 100% inspection.
z51vett

gatti-man

They have had failures after the supposed 100% inspection began. There has also been documented guide wear on 2012s. I wouldn't put much stock in GMs 100% inspection.

x86guru

I'm glad this poll is for your personal Z06 decision making. I was worried it was a general poll to help people that actually own a Z06.

vray

Why do you think that?

WICKEDFRC

Yes, this thread is for my own personal decision-making, however, depending how you look into the thread, it can be beneficial to both current owners and those considering a purchase.

Regardless, this forum is an essential tool for anyone to utlize in order to make informed decisions. Sounds like a sensible decision-making process to me as well as many others who might be concerned about purchasing a brand new vehicle with knows issues. Thankfully, there are some members who's input is useful.

OJCrush08

If you want this car badly enough it would be prudent to understand that there have been discernible risks that have been previously well documented on this forum. You can take your chances that you may be one of the unlucky ones who draws a short straw and suffers the complete loss of a very expensive motor. Or, you can take measures into your own hands if you are not one to rely on GM, who has stonewalled this issue for years.

I made my choice and my WCCH sourced Brodix LS7 heads should be at my doorstep by Wednesday.

As a local business likes to say: "An informed consumer is the best customer."

I am planning to keep my 427 for several years and it is pretty clear that the age of big displacement N/A high performance motors for mass produced cars (not counting very low Viper production) is about over.

Your results may vary...