Self-rotating sodium filled valves - used to be $38 each...... same as the cylinder head, dont let some guerrilla "chevy mechanic" talk you into grinding them down to smitherines, removing too much metal...... surface metal is different from the core to accomodate heat absorption - yet they will burn up entirely if you grind em too far down. Dealership will tell you NEVER grind sodium filled valves - just replace them instead.

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Last edited by 300SDog; 12-18-2003 at 02:55 PM.