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[Z06] New zo6 owner with question. Exhaust valve weight.

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Old 03-15-2024, 04:03 PM
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IndianaGreen96
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Default New zo6 owner with question. Exhaust valve weight.

Hi all,
I just purchased my dream car. Low mileage Yellow 06 z. Been driving Camaros since my last 96 vette almost 20 years ago and very happy to be back in the vette world.
I hate to ask another heads question but I don’t know where else to go lol.
anyway, my car had the head fix done by a seemingly good shop in the Midwest. “Fix only” no porting, milling etc. my question is the shop used Manley
1.61-Inch Stainless Steel Exhaust Valve Set (11689-8). I noticed at 120 gram weight those are significantly heavier then stock or most exhaust valves offered in “head fix”. Does this create any potential risk or problems with the heavier exhaust valves? For what it is worth they did upgrade springs as well. Any info would be appreciated. Thank you.
Old 03-15-2024, 05:14 PM
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Hib Halverson
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Hopefully, the upgraded valve springs will work properly with the heavier valve.

You'll find out once you start running the engine over 6500 rpm.
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