Distributor gear compatible with flat tappet cams and OEM hydraulic roller camshafts ACCEL BilleTech late model replacement distributors are the perfect replacement for the factory distributor in your late model car or truck. All BilleTech distributors feature: 6061 T6 Billet aluminum housing. Centerless ground steel shaft. 10,000 RPM bearing upper with oil lite bushing lower. ACCEL performance electronic pick up and module (where noted). High dielectric strength cap, balanced rotor for trouble free performance. Brass cap contacts. Iron or steel distributor gear compatible with flat tappet cams and OEM hydraulic roller camshafts. May be used with an ACCEL, Mallory, Crane, Holley or Jacobs Electronics CD ignition system.