Features & Benefits

The ultimate HEI kit has everything you need to make your early model GM HEI distributor a great performance distributor! The kit is supplied with MSD’s digital heat module (PN 83647), MSD s GM HEI coil (PN 8225) pro billet HEI cap (PN 84111), and rotor (PN 84101). By using upgraded components, the heat produces high output for stock and MSD applications plus has a built-in rev limiter that is more accurate and easier to set with the engine running. MSD s heat digital HEI module is a direct plug-in for the 4-pin HEI module and will produce up to 8.5 A of current.

• Update your stock HEI with MSD Performance
• Heat HEI module with built-in rev limiter
• Matched MSD coil for high output
• MSD injection molded cap and rotor
• MSD wire retainer
• Improves overall drivability