Valvesprings
Valvesprings Hi, I had a question about intalling some new valvesprings. I'm not really familiar with doing it, and I've heard something about "installed spring height" or something. You cant just take out old springs and put new ones in can you? Do you have to do something else? Also, what are some good springs for the LT1 without having to machine the heads? (preferably bee-hives, or the "dual" type springs)
Last edited by 97MysticZ; Nov 6, 2005 at 11:30 AM.
What are your cam plans, we can not intelligently recommend parts without knowing the rest of the package.
With a stockish combo and "known" springs and retainers checking installed height is probably overkill though never a bad idea. Beehives are originally intended for the LSX motors which use a 1.8 installed height the gen1 and gen2 motors like ours use a 1.7 resulting in higher seat pressure and less room before bind unless you do something to address the installed height there are a few options there from locks that can move the retainer up .050" machining heads etc. but you ahve to pay close attention to things like with +.050 locks which in theory will give you a 1.750 installed height they can interfere with SA rockers at higher lifts. So you might consider the tall locks and switching to guideplates and non-SA rockers or might chose to pick the beehives based on the stiffer shorter intalled height pressures. Also consider beehives need less pressure to do their job Vizard has stated 25% less pressure and not a lot of guys will tell him he is wrong about anything smallblock Chevy.
With a stockish combo and "known" springs and retainers checking installed height is probably overkill though never a bad idea. Beehives are originally intended for the LSX motors which use a 1.8 installed height the gen1 and gen2 motors like ours use a 1.7 resulting in higher seat pressure and less room before bind unless you do something to address the installed height there are a few options there from locks that can move the retainer up .050" machining heads etc. but you ahve to pay close attention to things like with +.050 locks which in theory will give you a 1.750 installed height they can interfere with SA rockers at higher lifts. So you might consider the tall locks and switching to guideplates and non-SA rockers or might chose to pick the beehives based on the stiffer shorter intalled height pressures. Also consider beehives need less pressure to do their job Vizard has stated 25% less pressure and not a lot of guys will tell him he is wrong about anything smallblock Chevy.
