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Author Topic: Valve spring question  (Read 2072 times)

Offline thachevythang

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Valve spring question
« on: February 23, 2011, 01:55:25 am »
Surely a newbie question but trying to get all the right parts ordered for my build.

I have new heads that support a .520 lift. Valve springs and retainers included. As long as my cam selection does not exceed that amount of lift, I don't have to order new springs correct?
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Offline Gusgus74

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Re: Valve spring question
« Reply #1 on: February 23, 2011, 01:46:02 pm »
You need to multiply the cam lobe lift by your rocker ratio to determine the true lift at the spring. I would still mock up a solid lifter, pushrod and rocker and spin the motor one revolution to verify if the spring is binding.
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Online VileZambonie

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Re: Valve spring question
« Reply #2 on: February 23, 2011, 03:41:17 pm »
Valve springs need to meet the cam manufacturers specifications as well as be installed at the correct specifications.
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