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GMC V6 and V12 Engines Engine repair and rebuilding

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  #1  
Old May 29th, 2013, 04:56 PM
Buffalo Buffalo is offline
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Default New HEI Distributor

Hello all,
I'm new to the forum, but have been reading posts for some time. Thanks to all who contribute their time, knowledge and ideas.
There is a vast amount of info here so forgive me if this has been covered..
I found a company on e-bay that custom makes HEI distributors out of billet aluminum for any engine,around $255 plus shipping. I recently installed one on my 305e '65 suburban.It fit perfectly, works great,one wire hook up(dont forget to replace the resistor wire). .The dist. comes complete with an adjustable vacuum advance, just use yor old gear.You can purchase a GM style plug for your old wire harness.I hope someone finds this info useful.
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Old May 30th, 2013, 12:20 AM
phelan phelan is offline
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Default Re: New HEI Distributor

Awesome! What's the name of the company?
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Old May 30th, 2013, 12:58 AM
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Default Re: New HEI Distributor

found them, the company is Heidizzy and here's the part mentioned:

http://cgi.ebay.com/ws/eBayISAPI.dll...tchlink:top:en
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Old July 25th, 2013, 04:51 PM
tommyduncan tommyduncan is offline
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Default Re: New HEI Distributor

Good to know it fits and works well. I bought a cheapie from another company for an AMC motor and it gave me nothing but problems.
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Old January 15th, 2014, 10:02 AM
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1969_CM2590D 1969_CM2590D is offline
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Default Re: New HEI Distributor

Since my 305 developed a tendency to stall and usually had to run with the choke out some, I've ordered this heidizzy distributor as well s a factory reman Holley 500.

Watch this space on how it goes...

Buffalo, you brought up a resistor wire, and a GM style plug. Would you care to expand on that? I'm not sure what you are taking about/how it is involved in the HEI installation.

Thanks
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Old January 15th, 2014, 06:48 PM
tommyduncan tommyduncan is offline
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Default Re: New HEI Distributor

Quote:
Originally Posted by 1969_CM2590D View Post
Since my 305 developed a tendency to stall and usually had to run with the choke out some, I've ordered this heidizzy distributor as well s a factory reman Holley 500.

Watch this space on how it goes...

Buffalo, you brought up a resistor wire, and a GM style plug. Would you care to expand on that? I'm not sure what you are taking about/how it is involved in the HEI installation.

Thanks
the resistor wire goes from the ignition switch to the coil in a points ignition. It only allows 9 volts so the points will survive. With an HEI you want a full 12 volts. Some people recommend a 10 gauge wire.
As far as a GM style plug I am guessing he means for the same wire we are speaking of and a tach lead. They are readily available from Summit, NAPA etc...
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Old January 21st, 2014, 03:52 AM
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Default Re: New HEI Distributor

Quote:
Originally Posted by tommyduncan View Post
the resistor wire goes from the ignition switch to the coil in a points ignition. It only allows 9 volts so the points will survive. With an HEI you want a full 12 volts. Some people recommend a 10 gauge wire.
As far as a GM style plug I am guessing he means for the same wire we are speaking of and a tach lead. They are readily available from Summit, NAPA etc...
Thanks, Tommy Got the wires ready to go from NAPA today- comes as a set, ignition switch and tach.

Anyone have opinions on plug gapping with the 50K volts this unit has and an Accel 496 plug?
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Old January 21st, 2014, 06:12 PM
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Default Re: New HEI Distributor

http://6066gmcguy.com/SparkPlug.html
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Old January 22nd, 2014, 09:18 AM
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Default Re: New HEI Distributor

Thanks, Funky. I checked that out. It seemed to me that page probably concerned a stock HEI which spits out about 35,000V from mit's coil. I just wondered if maybe there was a better gap with the 50,000V this new unit puts out...
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