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-   -   valve springs (https://classracer.com/classforum/showthread.php?t=16319)

Ian Hill 03-08-2009 10:46 AM

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

gmonde 03-08-2009 07:13 PM

Re: valve springs
 
whats the application??

Ian Hill 03-09-2009 08:41 AM

Re: valve springs
 
IHRA crate motor - 350 ci 340 hp with 434 lift flat tappet cam with roller rockers

CrateCamaro 03-09-2009 10:41 AM

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.

james schaechter 03-09-2009 07:00 PM

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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