LS7 sodium filled exhaust valves. Any Problems?
04-02-2008, 05:04 PM
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LS7 sodium filled exhaust valves. Any Problems? I have heard some problems with the LS7 breaking valvesprings, but i was wondering if anyone has heard of any problems with the sodium filled exhaust valves breaking?
04-03-2008, 10:17 PM
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I haven't heard anything about the LS7 exhaust valve but I have seen broken LS6 sodium filled exhaust valves. Best I can say is just watch the lift if you are going to use the LS7 valves, if you are going to go big on the lift then take a closer look at stainless.
They had a little article about valvetrain in the latest GM High Tech where Katech tested an Iconel stainless valve vs the LS7 valve and showed how the LS7 valve was stable up to 7600 rpm where the stainless was bouncing off the seat at 6900 rpm.
A neat little read.
They had a little article about valvetrain in the latest GM High Tech where Katech tested an Iconel stainless valve vs the LS7 valve and showed how the LS7 valve was stable up to 7600 rpm where the stainless was bouncing off the seat at 6900 rpm.
A neat little read.
