Guide, C630, Cast Iron, Exhaust, Various HD® Applications

Harley-Davidson® Sportster 1957-1969Harley-Davidson® Sportster 1970-1983 C630 Bronze: We choose to use the copper based C63000 nickel-aluminum bronze as a material to make our bronze valve guides because of its ideal characteristics for the application. The 5% nickel content provides superior resistance to wear, and the approximately 80 percent copper content delivers outstanding heat conductivity. KPMI® guide profiles are designed to have minimal effect on the airstream while maintaining critical cross sectional thickness in high temperature areas, which promotes high performance and endurance. Cast Iron: After chemically separating several samples of cast iron material , analysis and evaluating the test data, we decided to have our own specification of cast iron made exclusively , us. We specify elements such as carbon, silicon, manganese, nickel, chromium, copper and sulfur to produce a highly pearlitic structure with dense fine grains , excellent wear resistance. Click Here to Download KPMI® Guide Sizing Tool Flyer Click Here to Download KPMI® Seal Catalog Quantity Pkg. of 1 Type Exhaust Outside Dia, (G) 0.5650" (Std.)/ 0.5660"(+0.001")/ 0.5670" (+0.002")/ 0.5750" (+0.010") A 0.470" B 0.545" C 0.600" D 1.225" E 0.745" F 0.3375" Note Seal not required. However KPM® Intake seal #71033-4 may be used if a seal is desired. Unique Identifier No. FR327789_01GAUS