OE Exhaust Valves, Sodium |
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OE Exhaust Valves, Sodium |
914werke |
Apr 1 2006, 10:04 PM
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#21
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"I got blisters on me fingers" Group: Members Posts: 10,138 Joined: 22-March 03 From: USofA Member No.: 453 Region Association: Pacific Northwest |
I know Jake suggests tossing these, but unfortunantly Im rebuilding a set of heads. Id like to keep them stock, but Im more concerned about longevity.
Is there anything that can be done to improve thier function? Cryo? (IMG:http://www.914world.com/bbs2/html/emoticons/sad.gif) |
alpha434 |
Apr 2 2006, 07:05 PM
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#22
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My member number is no coincidence. Group: Members Posts: 3,154 Joined: 16-December 05 From: Denver, CO Member No.: 5,280 Region Association: Rocky Mountains |
Didn't most of the successful WWII airplanes use sleeve valves, not popett valves? And now, don't most of the successful airplanes use jet engines, not recriprocating engines? BUT, jets do use SS in certain places. But it's an aircraft grade 8000 series stainless, used for hardness (80+Rw.) That material is too brittle for our applications, it's expensive and not readily available. I've got a huge chunk of it that I got from Ball. And the thermal properties suck. |
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