I am looking at buying an engine harness from Year One - I have a 30% off coupon. I have a 383 and am wanting to run a late model alternator and will use the bracket kit from Andy at AR. The harnesses are made for a late model alternator or the standard alternator. Has anyone used one to know how the late model one wires up? I want to make sure I get the correct harness and am unsure of which one to get to run the later alternator. I was under the impression that the later alternators were "one-wire" but the one used with the kit Andy sells uses an adapter that has 3 wires. I've read the instructions but, again I'm unsure which harness to get. Not trying to be dumb I just want to make sure I get what I need the first time. Thanks in advance!

Your best off contacting M&H wiring directly to get what harness info/identification PN# you need, you'll still need to purchase it thru Year One though due to licensing with M&H

Thanks!

The one with the upgrade to factory electronic ignition has the wires for a dual field alt. i suspect that is the three wire alt you are asking about?

Its an excellent harness. Ive had several.

need to jump on this post I have same issue and have the harness with dual field alt what ballast resistor do I need I have the two prone type the harness has the four prone hook up !

Thanks Tom C.

Depending on the coil you have, you may be able to just jump it and skip having a ballast, which i have done. Guys get all hopping mad about this topic so...