Chevy In-Line 6 Cylinder Distributor For 194, 230, 250, 292 Inline-6 Engines. Must Be Used With An 6, 7 Or 8-Series MSD IgnitionA maintenance free magnetic pick up provides accurate trigger signals to your MSD Ignition Control. A precision manufactured reluctor that is connected to the shaft is responsible for triggering the pick up. The distributor is topped off with a high quality MSD red cap and Race Rotor. Starting on the inside, a 0. 500 Inch oversized steel shaft spins in a sealed ball bearing and sintered bushing for long endurance and accurate spark delivery throughout