Valve Guide,Int/Exh Cast Iron Fits 74"& 80" Flathead 30/73 .002 Size, 20-20762
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Valve Guide,Int/Exh Cast Iron Fits 74"& 80" Flathead 30/73 .002 Size, 20-20762

$22.50
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Valve Guide,Int/Exh Cast Iron Fits 74"& 80" Flathead 30/73 .002 Size, 20-20762C630 Nickel/BronzeC630 is a blend of copper, nickel, and aluminum. The high copper content gives excellent thermal qualities, the nickel makes the guides tough and wear resistant, and the aluminum brings work hardening characteristics. This bonze alloy allows for tighter clearances than other materials, creating better valve and seat sealing, as well as superior control. The expansion qualities of C630 bronze make it especially compatible with aluminum cylinder heads.Cast IronKPMI R&D has produced a proprietary cast iron blend that thrives in the tough operating conditions of today's engine. KPMI's certified cast iron provides excellent wear resistance and a superior guide bore finish that is easy on valve stems.ManganeseThese Engine Builder valve guides have been designed with the price conscious builder in mind. Expect the same exacting KPMI tolerances, but with a reduced toughness/wear-ability when

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