Kibblewhite KPM-20-20700C Cast Iron Standard Exhaust Valve Guide for Harley-Davidson Twin Cam 05-17/Sportster 05-21 OEM Replacement

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.

Specs
Quantity: 1
Type: Exhaust
Outside Dia, (G): 0.5620"(Std.)
A: 0.650"
B: 0.770
C: 1.030
D: 1.280
E: 0.615
F: 0.2750