Reply to "Parts needed to convert duraspark?"

Hey guys,

I need to make an addendum to what I wrote earlier. The connectors on every Duraspark module are "keyed" differently by Ford so modules cannot be installed in the wrong car. What this means is that the Painless Wiring harness #30812 which is keyed for a Duraspark II module will not work with a Duraspark I module unless 4 changes are made to allow Duraspark I parts to be used with a Duraspark II harness:

(1) The Duraspark II key tab must be removed from the 4 pin connector to use this harness with Duraspark I modules.
(2) The positions of the green wire and the orange wire must be reversed where they are spliced into the four pin connector's wiring.
(3) The ballast resistor included with the wiring harness is not used for a Duraspark I application.
(4) The alignment lug on the Duraspark I coil tower must be removed to allow the Duraspark II horse shoe style coil connector to slide on. It helps to have a Dremel tool.

Its not the end of the world, these changes are easy to make. But I don't want you to have any surprises when your wiring harness arrives in the mail and you find the Duraspark I connector doesn't just slip into the harness connector.

Obviously it would be better to pull a harness from a 1977 - 1979 California car if you want to use the Duraspark I module, but that may be hard to do if you don't live in California.

Sorry I didn't think of this sooner, it's been a while since I've worked on a Ford with a Duraspark ignition.