Killed Two Distributors and Don't Know Why!

You are going to have to provide some "real" details about your ignition.....are you talking about a breakerless/ magnetic firing a Mopar box or just what?

IT IS possible that (if that is the case) that the Mopar box has some sort of electrical problem that is causing current flow through the magnetic pickup and damaging it.

If this is a "ready to run" or something similar, could be mismatch of coil / ballast or even a coil going bad. What is the history of it?

Sorry for the lack of details. I was in a bit of a hurry yesterday. I don't have constant access to the web. I have to come over to a friends house to access it so I was too brief.

It is the ECM that is stock with factory electronic ignition. The coil is a MS Blaster, high performance or matching ballast, but the thing is the only thing that changed between it running with the old motor in it, and the distributor short I guess it was, after I had the engine installed was the distributor, here's the dist I put in it after the engine swap:

Proform Electronic Distributors 66990

Before I put the back up distributor on, the one that was running in the car before I had the engine swap, I used a back up ECM a back up ballast and a back up coil. I actually changed the four parts because I didn't know what it could be. So I had a the old dist. that was running before the swap, a back up ECM, a back up ballast, and a back up coil and it still did it with all these parts. But do keep in mind these parts are 12-13 yrs old, so it could be any one of these components malfunctioning now. I am just leery because it quit on the start again, wouldn't start after running 2 min before I tried to start it and it wouldn't start.

I was thinking maybe I fried something using the proform dist. but have no idea exactly what to replace. I don't know if I have the dist mismatched or not. I just got a 3rd distributor, but this is a factory or stock model... I just don't want to blow up this one too.

Is there anyway some other part of the electrical system could cause this malfunction? They did work under the dash/behind the instrument panel. I don't know if there could be a short somewhere else, or what. Seems like it would be the ballast to me, but not real sure.

Thanks for your help.