LS7 Valve Springs
08-11-2005, 07:21 AM
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LS7 Valve Springs Anyone know if they are compatible with LS1 and LS6 heads? The LS7 cam is rated at .591 lift, these springs might give us an OEM option other than 918's that do not need to be periodically changed...
08-11-2005, 08:09 AM
#2
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It is not the fact that they are aftermarket which requires us to change them. It is because we run them on steep lobes.
Put the 918's on a stock cam and they will outlast the stock springs by far.
And if you think that 427 is going to last over a 100K miles like other motors, you are in for a surprise.
BTW 427 is the key here, a .591 lift in a big stroker is very tame.
Put the 918's on a stock cam and they will outlast the stock springs by far.
And if you think that 427 is going to last over a 100K miles like other motors, you are in for a surprise.
BTW 427 is the key here, a .591 lift in a big stroker is very tame.
08-11-2005, 08:21 AM
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I had thought spring life was a function of design as well as lift/ramp rate. 918's will last as long as stock on a small/stock cam? I am sorry for all of the questions, I am just trying to make the best decision for my goals.
Last edited by roccox; 08-11-2005 at 08:27 AM.
08-11-2005, 08:28 AM
#4
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Longer if installed at proper specs. The only thing recommended is not to beat on them while they are cold. 915's are Comp replacement lifters BTW.
They are all same design "Beehive" just different materials.
They are all same design "Beehive" just different materials.
