20-2051 KPMI, intake valve guide. C630. +.001"

When building a 1979 to 1984 80-inch Shovelhead for performance, these Kibblewhite C630 bronze intake valve guides are a top-tier choice. The nickel-aluminum-bronze alloy is specifically engineered for racing and high-output applications where rapid heat transfer is vital to valve life. This guide features a +.001 inch oversize outer diameter to ensure a tight press fit in heads that have been previously serviced. For reference, the standard non-oversize dimensions are 0.6250 inch outer diameter, 0.3745 inch inner diameter, and 1.91 inch overall length. Sold individually, these guides offer the toughness required for aggressive cam profiles and high-heat environments, ensuring your Shovelhead stays at peak performance on the street or the track.