Precision Kpmi Mang Exhaust Guide +.010

The Kibblewhite KPMI Manganese Bronze Exhaust Valve Guide (+.010) is designed for budget-conscious engine builders. It maintains Kibblewhite's precise tolerances while offering reduced toughness and wear resistance compared to premium C630 Nickel Aluminum Bronze guides. The softer manganese material allows for easier reaming and finishing using high-quality ball hones. These guides can be sized efficiently with a standard battery-operated or electric drill, eliminating the need for costly honing equipment required for harder nickel bronze guides.