Kameari U20 STD valve guide

This is a standard valve guide that can be used for normal overhaul, head tuning, etc. Unlike genuine Nissan products, the inner and outer diameters are already finished to standard sizes, so there is no extra processing cost for polishing the inner and outer diameters. Finally, all you have to do is slightly adjust the clearance by reaming it.

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Kameari U20 STD valve guide