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SVTPerformance's Chain of Restaurants
Road Side Pub
Thinking about getting a Z06.
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<blockquote data-quote="93 347 Cobra" data-source="post: 15182626" data-attributes="member: 7047"><p>They never really fixed the valvetrain issues on any year vehicle. You can see failures all over the Vette forums for all years. The earlier ones were produced in higher volumes so you tend to see more of those. It's an inherent design problem on that engine that increases the likelihood of failure. They never got the valvetrain and cam profile fully dialed for durability in the design phase of that engine. Makes good power when it's working but the valvetrain is unstable. If you buy an LS7 you need to hold back 5K for repairs just in case. A few guys switched from the C6 Z to 13-14 GT500 for exactly that issue.</p></blockquote><p></p>
[QUOTE="93 347 Cobra, post: 15182626, member: 7047"] They never really fixed the valvetrain issues on any year vehicle. You can see failures all over the Vette forums for all years. The earlier ones were produced in higher volumes so you tend to see more of those. It's an inherent design problem on that engine that increases the likelihood of failure. They never got the valvetrain and cam profile fully dialed for durability in the design phase of that engine. Makes good power when it's working but the valvetrain is unstable. If you buy an LS7 you need to hold back 5K for repairs just in case. A few guys switched from the C6 Z to 13-14 GT500 for exactly that issue. [/QUOTE]
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SVTPerformance's Chain of Restaurants
Road Side Pub
Thinking about getting a Z06.
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