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  #1  
Old 11-05-2019, 09:34 AM
trmn8r trmn8r is offline
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Default two questions about HEI

1) No doubt others have gone to HEI on a 69 Camino, can I anticipate issues with clearance with the larger distributor? I searched and didn't come across any posts of others not getting it to fit, so I'm guessing it'll be ok, but wanted to ask directly to those that have.

2)From what I've read the current ignition switch may only feed 12v to the coil when in the run position, and no voltage to coil in start position, due to coil getting it's starting voltage from starter. Is this the case on 69? If so I understand I can simply keep using the wire from the starter solenoid to the coil for starting voltage, but what about an alternative ignition switch that itself will feed 12v when in run and start?
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Old 11-05-2019, 10:09 AM
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1) No fitment issues at all. One of the best upgrades you can do.

2) The 6 volt wire to the coil needs to be replaced. Its a resistance wire. Pull the firewall side of the fuse box loose and replace with new connector and wire.
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Old 11-05-2019, 10:36 AM
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Quote:
Originally Posted by 69 SS396 View Post
The 6 volt wire to the coil needs to be replaced. Its a resistance wire. Pull the firewall side of the fuse box loose and replace with new connector and wire.
so the ignition switch in a 1969 el camino will provide power in both the start and run positions to the coil through the same wire.?
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Old 11-05-2019, 11:20 AM
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On one side of the coil you will have a black wire going to dizzy. On the other (+) side there should be 2 wires, yellow and possibly purple. The yellow goes to the starter. The other one is the one you need to replace.
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Old 11-05-2019, 11:49 AM
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68build/69model was the first year with the key on the column, so things may have changed..
I have read some ign switches do-not supply ignition voltage during cranking,
I don't remember what years ??? it is easy to test for tho...
.
a points setup/coil runs on 6-9v thru the ign switch and resistor wire,,
12v from the starter is just for cranking,
due to the starter load, ign switch voltage to the points/coil would be much lower..
.
x2 if you swap to a HEI?? it needs full 12v all the time, to work right...
the resistor wire will trigger a relay tho, [if its on during cranking]
a relay mounted under hood with battery voltage to the HEI is a good upgrade
to un-load the ign switch and interior wiring too..
.
if you do swap to a HEI, get a spare Ignition Module for the glove box,
and don't buy the cheap ones,, get a ACDelco..
.
good pitcher Sean
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Old 11-05-2019, 11:53 AM
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Quote:
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Old 11-05-2019, 03:03 PM
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Quote:
Originally Posted by JJLT1 View Post
the resistor wire will trigger a relay tho, [if its on during cranking]
a relay mounted under hood with battery voltage to the HEI is a good upgrade
to un-load the ign switch and interior wiring too..
.
if you do swap to a HEI, get a spare Ignition Module for the glove box,
and don't buy the cheap ones,, get a ACDelco..
.
good pitcher Sean
that's not a half bad plan, I am gathering stuff to build a fused 8 relay panel to be mounted under there "somewhere" when I figure out exactly where and how. Also amen on the spare ACDelco module, I've had that go out on me before on a pickup that came with HEI
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Old 11-06-2019, 05:08 AM
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The way I view it you would be much better off keeping the points distributor and using it to trigger a CD box like the Vertex or MSD6AL. The HEI is not an upgrade from the points system and actually the sensitive module makes it a weak link. Points will always get you home.. Actually you would also be better off just leaving the points system in there then switching to HEI..

I recently bought a 1962 Iron points distributor and will use it to trigger a Vertex CD box. I will use this ignition to replace my GM HEI.. I hate the fact that the module could give up on me at any moment.. The GM Iron distributor is one of the best mass produced distributors..

Don't believe me, just look up HEI Module or Pertonix issues on any car forum, you will get a flood of threads compared to looking up points issues..

http://www.taylorvertex.com/Vertex/z6/

Last edited by pitts64; 11-06-2019 at 05:24 AM.
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Old 11-07-2019, 08:58 PM
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Default HEI advice

If you really want some hot spark, get an HEI from Summit with a 60,000 volt coil. I have one and I love it! Check your charge volts after you add the HEI. I also had to get a Powermaster 100 amp alternator (Also from Summit) to keep up with the voltage draw demands to keep the battery charged.
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Old 11-08-2019, 05:56 AM
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My post didn't come across like I meant it to. The HEI is an excellent distributor and like Jerry just said, with a nice coil it will really throw a spark...
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Old 11-08-2019, 05:59 AM
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Quote:
Originally Posted by trmn8r View Post
1) No doubt others have gone to HEI on a 69 Camino, can I anticipate issues with clearance with the larger distributor? I searched and didn't come across any posts of others not getting it to fit, so I'm guessing it'll be ok, but wanted to ask directly to those that have.

2)From what I've read the current ignition switch may only feed 12v to the coil when in the run position, and no voltage to coil in start position, due to coil getting it's starting voltage from starter. Is this the case on 69? If so I understand I can simply keep using the wire from the starter solenoid to the coil for starting voltage, but what about an alternative ignition switch that itself will feed 12v when in run and start?
1) It will fit just fine..

2) Just connect both an ignition switch activated 12 volt line and your old resister line to the HEI's positive lead.. The resister lead switches to 12 volt when the key is in the start position..
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Old 11-08-2019, 10:47 AM
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the GM with ACDelco parts HEI are excellent, big cap or small cap..
some the aftermarket stuff made Craphina is where you have problems..
.
if I could still get a MSD 6AL ANALOG box I would,,
not a Digital box tho, that's when the problems started.. and the ebayr fakes..
not that you need any of that stuff for a stockish motor..
.
in my speriance a coil will fail about as often as a GM ACDelco module..
.
the rub block on the points is the only drawback, if used just for a trigger on a box..
still have to adjust/replace them occasionally ..
we used to bump up the spring pressure on the points anyway, for the hi-rpm bounce..
some brands were way better than others, we had access to a distributor machine in school..



Last edited by JJLT1; 11-08-2019 at 10:56 AM.
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  #13  
Old 11-08-2019, 11:31 AM
trmn8r trmn8r is offline
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Think I'm going to go with this. Cost more than picking up a junkyard hei and rebuilding but not near as much as some higher end race ignition systems, I like the clean look of them installed. I don't need a race quality distributer on something I'm never going to put on the track. If the crossfire cap fails sooner than it should I see no reason I couldn't put a standard acdelco cap on it and keep right on running, just not as pretty.

https://www.crossfiredistributorcaps...ibutor-p9.html

Last edited by trmn8r; 11-08-2019 at 12:08 PM.
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Old 11-08-2019, 12:36 PM
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the crossfire caps did-not last in years past, seems like they broke-down internally,
tho I don't know anyone that's tried one in the 5yrs or so..
no telling what brand pickup/module they have in there,, if they don't say, beware...
.
168$ GM
https://www.amazon.com/ACDelco-93440...N9ZBRKYQFZAYFA
.
pigtail
https://www.amazon.com/Distributor-C...BP4SZ2A1FQTGZG
.
homemade crossfire ...
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  #15  
Old 11-08-2019, 12:52 PM
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those Craphinse distributors are 48$ on amazon with a cap, coil and all..
.
and they want more for a no-name brand module than a GM
https://www.amazon.com/ACDelco-D1906...BP4SZ2A1FQTGZG
.
https://www.crossfiredistributorcaps...odule-p14.html


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