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Old 03-08-2009, 10:46 AM   #1
Ian Hill
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Default valve springs

does anyone have any info on a better product. as posted below in another thread, during my time on the dyno, we were limited to the amount of timing i could put into the engine because the valve springs would start to fail at 6850 and full float at 7000rpm. i am running a hydraulic cam 430 lift. we are running a bee hive sytle spring now and any help on part numbers or brands that i could do some testing with would be appreciated.


Thanks
Ian

Last edited by Ian Hill; 03-08-2009 at 03:19 PM.
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Old 03-08-2009, 07:13 PM   #2
gmonde
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Default Re: valve springs

whats the application??
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Old 03-09-2009, 08:41 AM   #3
Ian Hill
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Default Re: valve springs

IHRA crate motor - 350 ci 340 hp with 434 lift flat tappet cam with roller rockers
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Old 03-09-2009, 10:41 AM   #4
CrateCamaro
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Default Re: valve springs

Comp Cams 941 in at 1.750 installed height. This is what I had on my wagon and it had no problems going 7500.
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Old 03-09-2009, 07:00 PM   #5
james schaechter
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Thumbs up Re: valve springs

I have used the poop out of PAC 1409s. 8000 rpm in my 283. I can give more details. e mail me at jimschaechter@earthlink.net
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