#243 LS6 valves in #317 Head?
03-12-2008, 10:17 PM
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#243 LS6 valves in #317 Head? anyone know if these will work? and will they hold up to boost and 1k whp?
Last edited by LS1IMPULSE; 03-12-2008 at 11:50 PM.
03-12-2008, 11:52 PM
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I posted this same question about a week ago and only got 2 responses. Can they be swapped, yes. They're the same diameter. However the LS6 valves are longer than LS1 or 317 valves for that matter, because the LS6 cam has a .050" smaller base circle. If they were swapped and you're running a standard base circle cam you'll need shorter pushrods. My idea behind it was the fact that I have an LS6 in my car, but will be doing an STS kit soon and will be swapping on some 317's. With the shorter valves in the 317's and the LS6 cam I theoretically need longer pushrods. However, I was told that what I have, Crane 7.250's for their Gold rockers, shold be fine. We'll see. My other thought was reduced valvetrain mass with the hollow intakes and sodium exhausts. I was told that the sodium valves on a turbo motor would not be the best set up. Hope this helps a little!
