20-2061 KPMI, exhaust valve guide. C630. +.001"

For 1979 to 1984 80-inch Shovelhead owners, managing exhaust heat is critical for engine longevity. This Kibblewhite exhaust valve guide is made from C630 nickel-aluminum-bronze, an alloy specifically chosen for racing applications due to its superior heat transfer properties. This guide is machined to a +.001 inch oversize outer diameter, ensuring a perfect press fit in heads that have been previously serviced. The standard non-oversize dimensions for reference are 0.6250 inch outer diameter, 0.3745 inch inner diameter, and 1.91 inch overall length. Sold individually, these guides provide the durability and thermal efficiency needed to protect your exhaust valves and seats from the extreme temperatures generated by a 1340cc Shovelhead engine.