Exhaust valve question
Thread Starter
Heel & Toe
Joined: Aug 2000
Posts: 16
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From: Bethesda Md
Exhaust valve question
I've been told that the new exhaust valves on some 'vettes are filled with sodium and or potassium. Is this true?
I assume this aids in cooling as the heat capacity of these elements is extremely high. I also assume this transfers heat from the hot face of the valve to the relatively keeper end of the valve stem.
What form is the sodium/potassium in when cold? When Hot?
What is the volume of the hollow stem and how many grams of sodium/potassium?
Although I have a low tech 68 vette, I am a high tech guy with a background in chemistry and materials engineering who is always interested in the latest technology.
Melting Slicks
Joined: Feb 2001
Posts: 3,360
Likes: 1
From: DFW TX
Senior Member
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Cruise-In IV Veteran
Re: Exhaust valve question (68 Magnum)
I've been told that the new exhaust valves on some 'vettes are filled with sodium and or potassium. Is this true?
I assume this aids in cooling as the heat capacity of these elements is extremely high. I also assume this transfers heat from the hot face of the valve to the relatively keeper end of the valve stem.
What form is the sodium/potassium in when cold? When Hot?
What is the volume of the hollow stem and how many grams of sodium/potassium?
Although I have a low tech 68 vette, I am a high tech guy with a background in chemistry and materials engineering who is always interested in the latest technology.
I assume this aids in cooling as the heat capacity of these elements is extremely high. I also assume this transfers heat from the hot face of the valve to the relatively keeper end of the valve stem.
What form is the sodium/potassium in when cold? When Hot?
What is the volume of the hollow stem and how many grams of sodium/potassium?
Although I have a low tech 68 vette, I am a high tech guy with a background in chemistry and materials engineering who is always interested in the latest technology.
