Kibblewhite 20-2051M Manganese Bronze Valve Guides Harley Shovelhead - 0.001 80

The Kibblewhite 20-2051M valve guides are precision-engineered manganese bronze guides designed for Harley-Davidson Shovelhead 80" engines (1978-1983). These Engine Builder series guides offer an economical solution for valve train rebuilds while maintaining KPMI's exacting manufacturing tolerances.

Key Features:

• Manganese bronze construction for easier machining and finishing
• +0.001" oversize for worn guide bores
• Fits both intake and exhaust positions
• Precision KPMI manufacturing tolerances
• Can be reamed and honed with standard battery or electric drill
• Compatible with ball hones for final sizing
• No expensive specialized honing equipment required

These guides are designed for the price-conscious engine builder who needs reliable performance without premium nickel aluminum bronze cost. The softer manganese bronze material machines easily and can be delicately finished to exact specifications using affordable tools. While offering reduced wear resistance compared to premium C630 nickel aluminum bronze guides, they provide excellent value for budget builds and street applications.