Brand: MSD Ignition Manufacturer’s Part Number: 8501 Ignition Coil Included: Yes Coil Style: In-cap Maximum Coil Voltage: 42,000 V Distributor Cap Included: Yes Distributor Cap Material: Rynite Distributor Cap Color: Red Rotor Included: Yes Coil Dust Cover Included: Yes Coil Dust Cover Material: Plastic Coil Dust Cover Color: Red Spark Plug Wire Retainer Included: No Adjustable Rev Limiter: Yes Ignition Module Included: Yes Ignition Module Type: HEI 4-pin Adjustable Vacuum Advance Included: No High Performance Spring and Weight Set Included: No Quantity: Sold as a kit.

MSD Ultimate HEI Kits

MSD Ultimate HEI kits have everything you need to turn your early model GM HEI distributor into a great performance distributor. The MSD HEI modules feature special circuitry to produce 50 percent higher coil drive currents than stock modules, resulting in higher spark energy at racing rpm. By matching the coil specifications with the modules, MSD delivers more accurate timing and dwell control. The kits also include a high-quality rotor, a durable cap with brass terminals, and even a new dust cover.