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Old 11-03-2011, 07:47 AM
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Distributor choice questions

My second post and wanted to get your opinion on a HEI choice for my stock 350 in my 72 El Camino SS.

Its a recent new rebuilt motor that i had installed. I also put a Edelbrock performer 2101 and a Rochester Quadrajet on it, stock cam, stock heads, iron exhaust manifolds. It has a points set up.

I'm wanting to upgrade to HEI and i see all kinds of them out there from $90 to $300 and up.

I ordered this one - http://www.summitracing.com/parts/SUM-850001R trying to decide between this one http://www.jegs.com/i/GM-Performance...oductId=753469 and one from here http://www.performancedistributors.com/gmssdui.htm

My question is about all the varying prices that they come in for my application. its a daily driver street car.

I didn't want to over kill for my application and didn't want to under kill and maybe gain some performance in my choice.

Can anyone elaborate on the subject as i may not know enough to know if i made the correct decision?

Would i gain something going with one of the others?

Are they all just as reliable?

Is there a better choice for my application than the ones i have listened?

Is the one i chose a good one?

Thanks in advance,
Mark

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Last edited by 1972 El Camino; 11-03-2011 at 07:53 AM.
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Old 11-03-2011, 07:53 AM
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honestly, the $50 ebay units with a genuine ACDELCO module would do very well in your application, and save you some money.
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Old 11-03-2011, 08:00 AM
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Quote:
Originally Posted by ap72
honestly, the $50 ebay units with a genuine ACDELCO module would do very well in your application, and save you some money.
thanks! so then since i purchased the one from summit racing i did good of the 3 choices?
Mark
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Old 11-03-2011, 08:30 AM
How fast is fast enough?
 
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DUI is one of th ebest HEI units made, but its not necessary for your car, the Summit one should work fine, the module my crap out though as the cheaper ones are built as well, if/when you replace it be sure to use a genuine delco part or one from DUI.
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Old 11-03-2011, 08:35 AM
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Quote:
Originally Posted by ap72
DUI is one of th ebest HEI units made, but its not necessary for your car, the Summit one should work fine, the module my crap out though as the cheaper ones are built as well, if/when you replace it be sure to use a genuine delco part or one from DUI.
how much are the modules? maybe i should have went with DUI?
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Old 11-03-2011, 08:38 AM
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Buy the better module now, at least keep it in your glovebox with the tools you'll need to change it out when the other one takes a dump.
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Old 11-03-2011, 08:41 AM
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Quote:
Originally Posted by FmrStrtracer
Buy the better module now, at least keep it in your glovebox with the tools you'll need to change it out when the other one takes a dump.
where to get the module? would i have made a better choice with an acdelco distributor?
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Old 11-03-2011, 09:02 AM
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Quote:
Originally Posted by 1972 El Camino
where to get the module? would i have made a better choice with an acdelco distributor?

Is the distributor better, sure. Is it worth the cost, probably not. You shoudl be able to get the module from any local autoparts store. Just make sure you get the Delco one and not the cheap knockoff.
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Old 11-03-2011, 09:53 AM
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Quote:
Originally Posted by ap72
Is the distributor better, sure. Is it worth the cost, probably not. You shoudl be able to get the module from any local autoparts store. Just make sure you get the Delco one and not the cheap knockoff.
which one is better the summitor the acdelco?
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Old 11-03-2011, 10:04 AM
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Quote:
Originally Posted by 1972 El Camino
which one is better the summitor the acdelco?
If you are gonna buy a cheap HEI that may (or may NOT) need a module (they ALL can go bad) then get the eBay HEI from Skip White. Cost less than $50, IIRC.

Otherwise, buy an AC Delco unit- knowing you are paying for the name and possibly a better module- w/no guarantee that it will need another module someday or not.

If it was ME, I'd do what I've done for years- go get a used GM HEI w/original module in it, take it apart, clean and reassemble it we/ a modified advance mechanism to fit the engine I was installing it on, and never look back.

Another possibility is the gear can need changed, depending on the camshaft material it was going to be working with.
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Old 11-03-2011, 10:11 AM
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Ccamino, I don't want to be critical - but you sound like me a few years ago. Don't over-think it, don't worry about it... you've ordered a dizzy so use it. In my current coupe I bought a low cost one from Skip White off of ebay, threw it in, it works fine (so far...).
Use it 'til you lose it, then fix it or buy another inexpensive one.
There are worse things to worry about....
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Old 11-03-2011, 10:48 AM
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Quote:
Originally Posted by user151
Ccamino, I don't want to be critical - but you sound like me a few years ago. Don't over-think it, don't worry about it... you've ordered a dizzy so use it. In my current coupe I bought a low cost one from Skip White off of ebay, threw it in, it works fine (so far...).
Use it 'til you lose it, then fix it or buy another inexpensive one.
There are worse things to worry about....
hey thanks man! i appreciate that as i'm well aware of over thinking while i am ignorant on a given subject! whats a dizzy?
Mark
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Old 11-03-2011, 10:54 AM
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Dizzy = lazy typists way of saying distributor.
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Old 11-04-2011, 12:08 AM
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I'd follow cobalts advice and get a used stock one. Probably wouldn't HAVE to do anything to it to use it.

Another good choice would be the skip white distributor. If you're worried about the module, go to the parts store and get a good one from there. I've had no problems with a Borg Warner module. Think it was about $50.
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Old 11-04-2011, 01:36 AM
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All I ever did was take a stock HEI, completely diassemble it, then clean the housing, check the bushings, lube it, then start on the shaft.
I`d install a new pick up coil, then I`d take the shaft and where the mechanical advance is I`d clean it then take some fine grit sand paper and polish it so the mechanical advance operated smoothly with no rough spots. Then I`d order the pertronix flame thrower ignition kit which includes all the guts, curve kit, adjustable vacuum advance, flame thrower module and matching coil, brass terminal cap and rotor button then reassemble. I would install a new cam gear, then check the endplay to see what thickness bushing I`d need to get it to spec to eliminate spark scatter. Sure, going this route costs more, but it gave me piece of mind of not having to worry about the ignition system.
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