MSD Extreme Output HEI Rotor RG200013XL Stud Girdle Assemblies

Stud Girdle Assemblies

These thermostats are compatible with 2004-'08 GM LS2/LS7 engines that use a separate thermostat and water neck

Stud is NOT included

The valve covers retain Holley's signature integrated angled coil mounts

MSD Extreme Output HEI Rotor RG200013XL Stud Girdle AssembliesWith the introduction of the 20 Amp Extreme HEI Module, MSD needed an HEI Cap and Rotor that could withstand the high output. The answer was to mold a new HEI Cap, Rotor and Coil Cover. The Cap and Rotor will fit MSD HEI Pro Billet Distributor, PN 8365, Extreme Output Rotor for MSD HEI and GM HEI. Features: Extreme output rotor Product Description: Distributor Rotor Brass Terminal MSD Heavy Duty HEI Sold Individually Racers never stop experimenting as