
08-22-2011, 06:12 PM
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CC Member
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Join Date: Jul 2005
Location: Bartlett,
Ill
Cobra Make, Engine: Everett-Morrison LS1
Posts: 2,448
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Not Ranked
Chas---the stem piece is spun welded to a disc for the face of the valve--some welding /manufacturing/engineers will have to explain the tech process but basicly a rod(valve stem ) is spun at high temp into the disc ---sorta like spin rubbing a stick on a rock to start a fire---
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