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Another O/T.... A check of spring pressure on Edelbrock...

May 16 2017 at 10:55 AM
ford-boy  (Login ford-boy)
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PERFORMER 302 heads shows 110# on the seat. New should be 120# and 320# open. I fear valve float with an X303 cam. Would 6200 rpm limit be safe or should it be limited to something a bit less??? I don't know what the open pressure is.

 
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kelly
(Login lowriser)
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you might consider these

May 16 2017, 12:52 PM 

http://www.ebay.com/itm/Speedway-Racing-Valve-Springs-1-465-Inch-O-D-Set-16/381245137546?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2055119.m1438.l2649

just that old crane double spring w/no damper. seat pressure should come out about right for those cams.
I might be mistaken, but if I can get these on my GT40X heads I will use them.

 
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