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06-01-2023, 08:23 AM
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#1 |
 Drives: 2021 ZL1 1LE with PDR Join Date: Oct 2022
Location: New Hampshire
Posts: 280
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ZL1 valve spring info
So, I told myself buying a certified pre owned ZL1 would be fine, but I can't shake the feeling of someone giving it the beans before selling it.
I was looking for info on stock valve springs and rockers that come with these cars and the search feature on this forum is not working for me. I keep getting a white page. Anyone have info on this? I have a blue driver cheap scan tool but it's obviously not showing any issues since there are no codes outside of some cleared ABS / radio codes that looks like the battery was disconnected at some point. |
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06-01-2023, 08:39 AM
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#2 |
           
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 7,665
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The valve springs are a 90lb beehive similar to what is used in the LS3/9. Aside from the offset, The rocker arms are the same slider tip roller design that GM has used since the Gen 3 LS1 debut in 1997. They are generally very reliable even in big HP builds. No need to upgrade them.
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 2016 NFG SS A8/Whipple 2.9/Fuel System/Flex Fuel |
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06-01-2023, 10:36 AM
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#3 |
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Petro-sexual
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26918s (springs), no? Maybe a trunion upgrade, but what King said.
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 '20 ZL1 Black "Fury" A10, PDR, Exposed CF Extractor Magnuson Magnum DI TVS2650R // RFBG // Soler 103 // TooHighPSI Port Injection // THPSI Billet Lid // FF // Katech Drop-In // PLM Heat Exchanger // ZLE Cradle bushings // BMR Chassis-Suspension Stuff // aFe Bars // Diode Dynamics LEDs // ACS Composites Guards // CF Dash // Aeroforce // tint // other stuffs |
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06-01-2023, 11:57 AM
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#4 |
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Drives: 2021 ZL1 1LE with PDR Join Date: Oct 2022
Location: New Hampshire
Posts: 280
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This is what I needed, thanks!
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