MagnaPower II Ignition Conversion

bhodge

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Aug 25, 2008
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I have a Chrysler 120 1974 1209HD MagnaPowerII engine with ignition problems. No spark on lower two plugs. Taking off flywheel tomorrow. Anyway, I have read terrible things about the MagnaPower II system.
Instead of trying to fix part by part (with fewer and fewer parts available), is it possible to do a conversion to get a whole new ignition system in?
 

Frank Acampora

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Jan 19, 2007
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Re: MagnaPower II Ignition Conversion

You have two ways to go! You can either hunt up the very expensive adapter (Of which I have one), change the flywheel and alternator , and change the engine back to Motorola distributor ignition. This requires finding a Motorola CD box, a distributor, and a shorter timing control tower.

The second, easier, and better option is to buy a complete Prestolite ignition from a late Chrysler or early Force engine. It should bolt right up and I THINK you can use the exsisting flywheel. So, you would need a stator, trigger ring, two CD boxes, four coils, and the mounting plate. Switch wiring will stay the same. If you could find reasonable components on ebay that would be the way to go or, lacking that, try to find an engine that has a blown powerhead but good ignition, buy the whole thing cheap and salvage what you can.

If you wanted to go whole hog, you could use any complete ignition from any Force right until Mercury discontinued them, But personally, I would stay with ignition systems up to about 1990.
 
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