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Thread: Big block valve springs
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10-30-2009 #1
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Big block valve springs
Ok guys I need some help here. I have a motor that I believe that the valve springs are going away. I am starting to get valve float where I never had it before. Any ideas on how I can I.D. the valve springs without taking springs off? the motor has bee together for a long time I don't remember the specks exactly on the cam I know that it is close to an LS6 grind. Any help would be appreciated.
Thanks
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10-30-2009 #2
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Use this or something comparable...
http://www.jegs.com/i/Logan+Smith+Tools/621/PC-100/10002/-1
http://www.summitracing.com/parts/MOR-62390/
James
James Faria
07 GT500 740rwhp
10-30-2009 #3
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do you think this will work even if the springs are going bad? I am thinking test all of them and use the higest number. Does that sound right?
10-30-2009 #4
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No,
You want to test all the springs and see if they are within a certain percentage of each other. That number being 5% on a race engine it would be 2% if they are off more than that they are bad. Also, if you can press the spring down with your hand without any tools and you have a roller cam, the springs are bad.
JamesJames Faria
07 GT500 740rwhp
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