NSX V6-3.2L DOHC (VTEC) (1997)
restore seat width.
NOTE: The final cut should always be made with the 45° stone.
7. Insert intake and exhaust valves in the head and measure valve stem installed height.
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Valve Stem installed Height (Intake and Exhaust):
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Standard (New): 41.55 - 42.35 mm (1.6358 - 1.6673 inch)
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Service Limit: 42.435 mm (1.6707 inch)
8. If valve stem installed height is over the service limit, replace the valve and recheck. If still over the service limit, replace the cylinder head; the
valve seat in the head is too deep.