Join Date: Dec 2002
Location: Cameron Park, CA
Re: C6 zo6 common issues for the Engine failure
I sold my 07 ZO6 last year, so Iím not completely current. The only problem I had was the valve guide wear. The heads were replaced under my extended warranty. You can check valve guide wear w/o removing the heads. Loose valve guides can result in swallowing a valve, which pretty much trashes the very expensive motor. Lots of after-market fixes.
The stock intakes are titanium, expensive but light weight. Stock exhaust are two piece sodium cooled, can break instead of bend.