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Pushrod check help

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Old May 13, 2024 | 08:28 PM
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Default Pushrod check help

Hi guys, I have a 1999 c5 corvette that I have long tubes, cold air and I installed a btr stage one cam kit in along with ls7 lifters. For the life of me I can’t figure out how to measure the pushrod length. Anyone around Dracut Massachusetts want to give me a hand? Slight ticking and it’s very annoying, let me know

thanks
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Old May 13, 2024 | 10:30 PM
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Remove rocker arm, pull out pushrod.
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Old May 14, 2024 | 05:46 AM
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Thanks I already have done that and then some, I have tried to do this but for some reason my numbers are all over the place
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Old May 14, 2024 | 08:12 AM
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Check this out (thanks Bill):
https://www.corvetteforum.com/forums...post1578473349
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Old May 14, 2024 | 09:39 AM
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I use Pittsburgh 8" calipers to measure.

https://www.corvetteforum.com/forums...post1607720961


Last edited by 93Polo; May 14, 2024 at 10:09 AM.
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Old May 15, 2024 | 02:24 AM
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Originally Posted by 88chevy2020
Hi guys, I have a 1999 c5 corvette that I have long tubes, cold air and I installed a btr stage one cam kit in along with ls7 lifters. For the life of me I can’t figure out how to measure the pushrod length. Anyone around Dracut Massachusetts want to give me a hand? Slight ticking and it’s very annoying, let me know

thanks
Do you have a Comp Cams measuring tool? If not there is another way, but the tool is the best way to go.

There’s a lot of videos on this, but these help me the most. They all have the same message, but different delivery. The third video at the bottom shows you how to measure both with a length checker, or with a wrench.

Just remember, a full turn of the rocker nut turns the rocker down 0.078”, or 78 thousandths of an inch. The LS7 lifters use preload between .050” and 0.100”. So if you have the rocker at zero lash, three quarters of a turn on the nut would be 0.058”, or 0.078” on a full turn. That puts the preload in the safety zone.




Last edited by vette4fl; May 15, 2024 at 02:33 AM.
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