I'm almost done putting together a 390 long block to replace the destroyed 352 somebody put in my 62 F250. I've searched around a bit and know that a Pertronics system would be easier to install than a Duraspark, but
1. Which one performs better?
2. Which one lasts longer?
3. If I were to go with a Duraspark system, what years should I get it off of?

Thanks for helping a noob to the FE world.

 

I think they are both excellent improvements over a point system. (BTW, about 2 weeks ago I had a point system with low miles that left me stranded without warning) I think an advantage that the Duraspark system has over the Pertronix is if it leaves you set, you can still get parts for it at a parts store, although some of them might be lowering their inventory on older parts.
Years ago, I remember doing some ignition work on a '76 or '77 Ford truck with a 360/390 that had a Duraspark in it. I don't know it it would have the optimum spark advance, however.

 

I'd say get the Pertronix if you don't already have a Duraspark wiring harness and distributor, and currently have a points setup. It's much easier to wire in and you don't need to find a place to bolt the Duraspark module in.

You won't have to worry about timing, or anything else, as long as your current POINT distributor is already tuned correctly.

I can't say which is more durable.

If you're really hyped on durability, and go places where you really NEED your vehicle to live, get a spare Pertronix unit, and the tools to replace it, and put them in the glovebox. Same goes for the Duraspark. If you're 4x4'ing in remote places, hunting, whatever, a spare module is always a good idea.

 

Agree, both are an improve'mt over points; goes without saying, trying to get that cold blooded beast started on a winter morning was a pain in the backside. Installed Duraspark ll on the 65, primarily because I was able to purchase components at local Napa auto parts store. Would say they cost about the same. It's my understanding can go with the Pertronics and add an ignition control box later.

 

If all you want to do is do away with points, Petronics and carry a set of points in the glovebox. For the whole system, I'm partial to the Duraspark II. 76-77 has the blue module. The connectors needed are available at NAPA. Dizzy, module are available in stock at every parts store I deal with.

 

Oh, by the way, I did use a '76 Duraspark on the 390 I built for my highboy. The only thing that made it cold-start better was adding an MSD 6AL multi-spark which a slightly-hotter coil.

So... ? I doubt a Pertronix would help cold-start without a hotter coil.

 

Forgot to mention, used the original dizzy for exhange and got the discount. Use the larger dizzy cap, not that knowledgable but thought pehaps less likey of any crossover, but the darn thing's expensive. Anyhow, installed in both trucks approx. 4 1/2yrs. ago with no problems.

 

I think I'll lean toward the Duraspark II from what I've heard about it. Now all I have to do is put one together. I'll need the dist, coil, module, anything else I'm missing

and thanks for all of the great responses!

 

i use to run a Mallory unilite dizzy until the eye took a crap and the replacement cost was almost as much as the dizzy cost . so i went with pertronix . i really like it work flawless for about 7 years , then the problems started . i tried alot different fixes but still had same problem . the replacement cost for a new pertronix was out of my budget range so i converted over to the duraspark . i got the dizzy for $47 + core ,got wire harrnes from wrecking yard $10 . i spent a day putting it in and now it runs great


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