Electronic ignition conversion

[John Milner]

I purchased a new engine wiring harness that converts to a stock style electronic ignition.  I plan on running that in my 68 Charger.  I am also planning on running a stock replacement alternator and voltage regulator.  Will I need to upgrade my alternator or voltage regulator since I will be running an electronic ignition now? 

[BLK 68 R/T]

I believe you have to upgrade the alternator and regulator to the 70 style, also the ballast resistor is a 4 prong vs 2 prong in the conversions.

[Nacho-RT74]

Not mandatory, but better.

About ballast, 4 prongs matches with 5 pins ECUs, 2 prongs with 4 pins ECUs, althought sharing same wiring. You can install 4 pins ECU keeping the older stock setup with 4 prongs ballast, but won't be correct the other way around.

[John Milner]

Thanks for the replies.  I will order a 70 model 60 amp alternator, 70 model voltage regulator and the 4 pin ballast resistor just to be on the safe side. 

[BLK 68 R/T]

I'm pretty sure the engine harness for the electronic ignition conversion built into it is set up for the 70 and later style alternator and regulator.