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Old 08-23-2011, 10:15 AM   #1 (permalink)
 
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1972 gto distributor

Hello, I have a 1972 GTO with a 1976 pontiac 400 block and there is an old type of electronic distributor. Wondering about what type of spark plug wires to buy. Ordered 2 sets in the past and the connectors did not fit on the distributor.
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Old 08-23-2011, 04:53 PM   #2 (permalink)
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I'm no expert but I'm willing to guess you still have the 72 dist in your motor. This was a "pre" HEI electronic ignition and while a good system you are correct that wires are not available. I would recommend switching to the later model HEI, it will be cheaper, more reliable and easier to find parts for.

P.S. some restorer might pay some bucks for your dist you have now.
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Old 08-24-2011, 07:43 AM   #3 (permalink)
 
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A pic would tell the story. Is the coil in the top of the distributor-HEI. Old style electronic?
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Old 08-24-2011, 12:29 PM   #4 (permalink)
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I would get a set of wires from the resto vendors like our host. If points ignition, yes, the '64-'73 wires are different than the '74/'75 on up HEI stuff. '74 was really weird...it was a one year only HEI with the wires molded to the cap. The commonly seen one is the big cap with the coil mounted inside it. An excellent system, but will not work on a tripower engine due to bulk.
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Old 08-24-2011, 12:59 PM   #5 (permalink)
 
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Sorry I don't have the car at home right now. It is away at the body shop so I cannot show a picture. I am pretty sure it is the 72 electronic ignition. I would like to be able to just buy a new set of wires for the distributor because the vehicle is so reliable as it is now. I also have a 67 RSSS camaro with alot more money into it but is not near trustfull as the 72. If I cannot get wires would you recommend a summit HEI. I have noticed they are cheaper than some of the others. Thanks for the replies
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Old 08-24-2011, 11:09 PM   #6 (permalink)
 
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Get a set of HEI wires for a Pontiac. Money buys quality, and I like MSD or Accel. It's all about the ohms of resistance for foot. New wires are better than old ones, summit wires should be fine.
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Old 08-30-2011, 05:53 AM   #7 (permalink)
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If that is a true 72 distributor the HEI wires will not fit.

They are called a "Unitized Ignition" and they need specific wires which to my knowledge no one reproduces.
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Old 08-30-2011, 09:03 AM   #8 (permalink)
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I think the unitized ignition was '74 only, but could be wrong. I've seen it twice in years of being in the industry, both times on '74 Pontiac v8's in big cars. It is a weird looking animal.
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Old 09-02-2011, 08:28 PM   #9 (permalink)
 
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not good news Pontiac Ignition Option - Tech Articles - High Performance Pontiac Magazine
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Old 01-17-2013, 03:29 PM   #10 (permalink)
 
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My 72 WW5 has a unitized distributor...only thing that was stolen from the car. I have a hei in it now. I know they work better and don't burn out if you leave the key in the ignition turned. A problem that unitized had.
Anyone know where I can get a late 71 or early 72 unitized distributor? eBay has some that are way to expensive and wrong date codes.
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