Quote:
Originally Posted by crainholio
I haven't found 243 heads w/ LS6 hollow valves on any engines other than Vette LS6 models yet, are you sure your Avalanche valves are the hollow ones?
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I know these are not the sodium filled hollow valves. I wanted to know it is worth replacing the ones I have with something lighter; Possibly the sodium filled hollow stems if I can find them at a reasonable price.