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Old 05-29-2012, 05:02 PM
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Spring Pocket Vs Spring Size vs valve lenth Help Needed

I measured the spring pocket on the bare alloy heads I've perquired & they look to measure 39mm= 1.550"

but im well confused as to what size springs & locator's I can use with them.
do I need to take spring retainer thickness into account when calculating valve lenth? ising an old valve it looks like a 4.911 valve lenth wouldbe right with an installed hight of 1.70"
im only looking to run a .450- .470 lift cam on the motor what options do i have???

Last edited by swompz; 05-29-2012 at 05:11 PM.
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