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Single spring or Double spring with 600 roller

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Old 06-08-2009, 11:58 AM
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Default Single spring or Double spring with 600 roller

I know that a double spring is better in control harmonics. However is it need with these ls style motors. I'm putting a good pushrod in the motor. I'm upgrading the retainers also. At what point do I need to go with a double spring.
Old 06-08-2009, 12:06 PM
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what size and type of valves are you running?
Old 06-08-2009, 12:12 PM
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It realy depends on your camshaft, Ive read great things about the comp cams 918 single beehive spring but I wouldnt push it to far past the .580 lift mark.
Old 06-08-2009, 12:25 PM
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2.02 or a 2.05 valve. I have not got the cam yet.
Old 06-08-2009, 01:14 PM
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it will also depend on how "square" the lobes are, also are you going to be runing boost? Hollow stem valves or what type? If you are having to debate running singles or doubles i would just run doubles for the peace of mind that way you dont have to worry about dropping a valve.
Old 06-08-2009, 09:53 PM
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Originally Posted by 180ls1
it will also depend on how "square" the lobes are, also are you going to be runing boost? Hollow stem valves or what type? If you are having to debate running singles or doubles i would just run doubles for the peace of mind that way you dont have to worry about dropping a valve.
I just was saying the samething when i went to the machineshop. I said i will not be cheap about certain things. I never built one these So I'm not taking any chances. However I'm not trying to put his kids through college.




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