The Ultimate HEI Kit has everthing you need to make your early model GM HEI Distributor a great performance distributor! The kit is supplied with MSD’s HEAT Digital 8.5 amp performance Module (PN 83647). By matching the Coil specifications with the module, MSD is able to produce maximum spark output.

MSD 8501 HEI Kit

  • Features:

    • Rebuild your GM HEI with MSD performance.
    • Exceptional high speed coil saturation for full power high rpm operation.
    • Matched Coil and Module produce the highest voltage and energy.
    • Complete kit with a brass terminal Cap, Rotor, Module, Coil and dust cov