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Old 11-08-2010, 11:16 AM   #36
bmwrench
Beastly Adventurer
 
Joined: Nov 2006
Oddometer: 2,020
My post about valve stem to guide clearance applies to Kibblewhite's "Black Diamond" parts, not OEM or other aftermarket parts, and only the exhaust side at that.

Yes, tight guide clearances, where they will work, are a Good Thing; better oil control and valve sealing, leading to longer-lasting valve jobs, less noise,etc.
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