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Old 08-14-2006, 10:10 AM
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I was wondering if it possible to change from a points system to a HEI? I think my old friend did but i am unsure. If possible what other things do you have to change out. thanx

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Old 08-14-2006, 10:57 AM
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It should be a drop in swap. The only consideration is if it will clear the intake and air cleaner. When I did it on my Chevelle I had to get a new intake as the Edlebrock C4B intake that was on it wouldnt let the dist. drop all the way in. Then the air cleaner would not clear the dist. top. I make a 3 inch spacer to go between the carb and dist. . The other thing you have to do is eliminate the resistor wire that goes to the dist now in the run position. The HEI needs a full 12 volt.
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Old 08-14-2006, 05:27 PM
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Doc here ,

The Swap is basically straight forward..

Some considerations you must observe..Is Clearance.

Be sure there is enough clearance from the firewall, to Distributer, (like 55 , 56, 57 Chevy is too tight without modification) as well as some later years and larger body styles..

Also be sure you have manifold clearance and other, like Blower (if equipped) and the like..

If you can't get this with a Stock GM HEI, you have the option of a small body HEI, made by several manufactures out there..

To Install in your Body, first determine or locate the ballast resistor / resistor wire for the + side of the coil..Remove this resistor / HEI won't run/won't run well with it in place. After you do that, extend that wire to the "Batt" terminal on the cap. Install a proper slide connector.

If you have Secondary Ignition, Remove this wire or remove the solenoid "R" or "I" Terminal end and cap both sides off. This wire SHOULD not be needed.

Finally, If you have a Tach, The terminal on the Distributer cap marked "TACH" will receive the tach pickup wire..install a proper slide terminal on it.

The rest is like a Standard Distributer R&R..

If your Vehicle is Non Computer, and non smog, you need to be sure your STOCK GM HEI acquisition is a PRE~1980 Distributer..The Post 80's require Computer support.

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