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-   -   valve sprig life (https://classracer.com/classforum/showthread.php?t=35964)

chevy 68 09-11-2011 01:36 PM
valve sprig life
 
BB Chevy 502 crate, stock, comp cams spring 2 yrs old. Springs tested between 200-240, I assume a bad one would be about 160?

Thanks,

Bob Smith

daninline 09-11-2011 06:02 PM
Re: valve sprig life
 
Bob it looks like the factory springs are around 130 to 140, 200 to 240 seems way to much for a hyd lifter. the big question is will it cause a intake pop on the upper RPM range like you have seen....

chevy 68 09-11-2011 06:08 PM
Re: valve sprig life
 
so how long do springs last?

daninline 09-11-2011 07:51 PM
Re: valve sprig life
 
Quote:
Originally Posted by chevy 68 (Post 282125)
so how long do springs last?
forever just keep lowering your shift light RPM's :eek::D

72Malibu 09-12-2011 07:50 PM
Re: valve sprig life
 
I'm using Brodix' GA1000 springs on their racerite heads .708/.708 solid roller and I get 2 yrs out of them. 450-500 passes.


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