Ignition box upgrade?
Hotshot
Joined: Apr 2009
Posts: 14,333
Likes: 247
From: Stanley, VA
If everything is stock, a '79 will have the DSII system (Dura-spark II)
I would just go with the stock quality replacement module.
The modules are identified by the color of the plastic grommet that hold the wires where they come out of the box. Blue is the best, and most common.
Most Ford dealers are going to stock the Motorcraft replacement. The same part is available from Rock Auto cheaper.
Motorcraft DY-893 $68.79 RockAuto Parts Catalog
I would just go with the stock quality replacement module.
The modules are identified by the color of the plastic grommet that hold the wires where they come out of the box. Blue is the best, and most common.
Most Ford dealers are going to stock the Motorcraft replacement. The same part is available from Rock Auto cheaper.
Motorcraft DY-893 $68.79 RockAuto Parts Catalog
Fleet Mechanic
Joined: Sep 2013
Posts: 1,504
Likes: 8
From: Indian Falls, New York
Yes the MSD kits I mentioned are compatible. The kits are basically an OEM replacement, if anything slightly, really slightly higher voltage. They aren't too expensive either. Don't think we paid a lot.
Lead Driver
Joined: Mar 2008
Posts: 7,174
Likes: 377
From: Near Los Angeles
here is a link in case you wanted to try the super easy gm 4 pin:
TRICKY or TRICK? HEI Module Inside Duraspark Case - Ford Muscle Forums : Ford Muscle Cars Tech Forum
TRICKY or TRICK? HEI Module Inside Duraspark Case - Ford Muscle Forums : Ford Muscle Cars Tech Forum
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