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Mustang Forums
2011-2014 Mustangs
Engine/Tuning
5.0 Coyote Valve Spring Upgrade: Brands, size, and price
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<blockquote data-quote="DSG2003SVT" data-source="post: 13851468" data-attributes="member: 29534"><p>I'm not implying that you didn't understand that sentence, I just want to be of assistance if it's needed.</p><p></p><p>What he was saying is that a hollow stem valve needs sodium because there is less metal there to absorb heat.</p><p></p><p>A solid stem valve has enough metal to withstand the heat.</p><p></p><p>A sodium-filled valve doesn't deal with heat any better than a solid valve, it's just lighter.</p></blockquote><p></p>
[QUOTE="DSG2003SVT, post: 13851468, member: 29534"] I'm not implying that you didn't understand that sentence, I just want to be of assistance if it's needed. What he was saying is that a hollow stem valve needs sodium because there is less metal there to absorb heat. A solid stem valve has enough metal to withstand the heat. A sodium-filled valve doesn't deal with heat any better than a solid valve, it's just lighter. [/QUOTE]
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2011-2014 Mustangs
Engine/Tuning
5.0 Coyote Valve Spring Upgrade: Brands, size, and price
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