For Pontiac 4 Cyl. 151 Applications; .491 Shaft Diameter; First requirement when installing a steel roller cam; AMPCO-45 extruded aluminum bronze with 5% nickel added; Feature a high strength tooth design that resists wear
Stock cast iron distributor gears are not compatible with steel camshafts. COMP Cams Bronze Distributor Gears are the first requirement when installing a steel roller cam. They are made from AMPCO-45 extruded aluminum bronze with 5% nickel added. They feature a high strength tooth design that resists wear even when used with high pressure oil pumps.
