The ignition (or distributor) cap is where ignition wires that run to the spark plugs receive high-voltage current from the ignition coil. Metal contacts in the cap connect with contacts in the ...

If there is a standard in the world for a stand-alone electronic ignition distributor for GM engines, it has to be the High Energy Ignition or HEI distributor. This large cap distributor first ...

The distributor has two jobs: to house a switch that tells the coil when to send a spark, and to send that spark to each individual cylinder in the correct order. The distributor shaft is spun by the ...