C6 Z06 LS7:Pull the Heads or Keep Driving?

A C6 Z06's LS7 runs fine. Anthony wouldn't pull the heads for the valve guides; he'd drive it and watch for symptoms. The blog makes the case for measuring anyway.
Some owners pull healthy-running LS7s apart for peace of mind. Others keep driving. Here’s what the evidence actually supports—and what to ask before approving head work.
Transcript
All right, guys. Welcome back, everybody. Let's talk a little bit about the valve issues in the C6 Z06 Corvette, right? So the big discussion is, is, You know, would you dig into your C6 Z06 Vette, LS7, before you have an issue with the valves?
So my take on this is, there are things that are called preventive maintenance, right? And then there's things called abuse on a car, and then we break them, and then we're gonna sit there and cry about it, right? So, The valve issues on the C6, in my opinion, right, they've been—the C6 has been around for quite some time.
The reason that people are like, "Oh, well, I have a valve issue," right? Nobody buys a Corvette to, you know, drive it nicely. Nobody buys a Corvette to, you know, not have fun with it, right? If I'm buying a Corvette, I promise you I'm revving it high.
I'm constantly gonna be running it— not constantly, but for the most part. I'm buying it to have fun, right? I'm not looking to grandpa it around. That's where people start breaking things, right? Now there's reports, 88,000 miles, you know, "My valves went bad and my head cracked." Listen, 88,000 miles out of essentially a sports car, you did pretty good, in my opinion, right?
You were able to keep it in one piece for 88,000 miles, where most sports cars, you probably break them in the first 10, 15,000 miles. So now, my personal take on would you dig into your C6 Z06, right, and fix a problem, or what people think is a problem? Would you get—go in there and replace the valves before they break?
Me? No. Why? Just because somebody had a problem means I'm gonna have the same problem? If that was the case, guys, then, oh my God, we better get rid of all of our vehicles, because guess what? Every car has all the issues in the world that you can think of, and it all comes down to maintenance, maintenance, maintenance.
You don't beat on the car and you maintain it, it'll last you longer. You drive it like you stole it, like it's meant to be driven, you're gonna break it sooner than later. Um, there's nothing wrong with that, though. That's what you bought the car for.
Have fun. Beat on it. Destroy it. Break it. Fix it. And do it all over again, right? Some people, and it's very— some very slim amounts of people, right? They buy a car, 5,000 miles, they baby it, you know, valves go bad. It happens, right?
Manufacturers are not perfect. No manufacturer's perfect. Especially today's day and age. Ford's got its issues. GM's got its issues. Honda's got its issues. Honda's using GM, for—for crying out loud.
Every car manufacturer has their issues, some more than others, some less than others, right? Now, what are we talking about? We're talking about specifically the C6 Z06, and would we dig into it if we don't have a problem? Would we start looking for one? No. I'm not gonna start digging into it until it's broken, or I start getting signs that it's running poorly, running incorrectly, or there are some type of actual mechanical issues.
Up until then, I'm gonna sit there and enjoy and drive the car. That's just me. Now, some guys, right, they're sitting at home after dinner, scrolling on TikTok, Facebook, one of the forums, or whatever it may be, and they're like, "Oh my God, look at this.
My C6 only got 30,000 miles, but this guy, you know, at 15,000 miles said he had an issue with his valves, and he went out and replaced them." He might want to go and replace them. But in my opinion, that's a waste of money. Wait till you have to replace them, if you ever do.
For all you know, you might not need to replace them. So why spend the money unless you already have signs that, you know, that it's failing, that you need to do some type of work? But other than that, don't touch what's not broken.
Don't try and fix a problem that's not there. And everything will be all right. And enjoy your C6s, guys. Have fun.
A correction
At 1:15 Anthony mentions an 88,000-mile car with failed valves. The owner report in our blog says those heads checked within GM spec at 88,000 miles, so that's a different story. If you know the car he means, tell us.
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