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  #1  
Old 02-06-2020, 07:27 PM
mwood65's Avatar
mwood65 mwood65 is offline
258 I6
 
Join Date: Jul 17, 2017
Location: Arizona
Posts: 347
Electronic ignition?

What is the cheapest way to swap in a new distributor?


I know MSD and others make aftremarket ones but is there a cheaper way?


Just a OEM HEI unit that will bolt in?
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  #2  
Old 02-07-2020, 09:31 AM
StretchinPA StretchinPA is offline
230 Tornado
 
Join Date: Dec 18, 2019
Location: AZ
Posts: 14
Quote:
Originally Posted by mwood65
What is the cheapest way to swap in a new distributor?


I know MSD and others make aftremarket ones but is there a cheaper way?


Just a OEM HEI unit that will bolt in?

I grabbed this HEI one off of Amazon and it's been working great for me.
https://www.amazon.com/gp/aw/d/B06XY...b_b_asin_title

It replaced the old prestolite ignition that was still on the waggy.
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  #3  
Old 02-07-2020, 10:53 AM
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mwood65 mwood65 is offline
258 I6
 
Join Date: Jul 17, 2017
Location: Arizona
Posts: 347
Quote:
Originally Posted by StretchinPA
I grabbed this HEI one off of Amazon and it's been working great for me.
https://www.amazon.com/gp/aw/d/B06XY...b_b_asin_title

It replaced the old prestolite ignition that was still on the waggy.




That's for the 8cyl., sorry I didn't specify but I have the 258.


They may have one for that also, I will check. Thank you.
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  #4  
Old 02-07-2020, 10:57 AM
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tgreese tgreese is offline
 
Join Date: May 29, 2003
Location: Medford MA USA
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The only OEM HEI that will work is from a 250 Chevy inline 6. The original gear won't work but you can use a gear from an AMC V8 and that's supposed to fit if you turn it upside down(??)

There are many options, including the 250 distributor and aftermarket HEI (not OEM!) I would not go with an aftermarket HEI. What year is your Jeep?
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Maine beekeeper's truck: '77 J10 LWB, 258/T15/D20/3.54 bone stock, low options (delete radio), PS, hubcaps.
Browless and proud: '82 J20 360/T18/NP208/3.73, Destination ATs, 7600 GVWR
Copper Polly: '75 CJ-6, 304/T15, PS, BFG KM2s, soft top
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Old 02-07-2020, 11:19 AM
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babywag babywag is offline
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Pertronix conversion, or '78-up OEM Jeep Duraspark from a 258.
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  #6  
Old 02-07-2020, 11:32 AM
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tgreese tgreese is offline
 
Join Date: May 29, 2003
Location: Medford MA USA
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Ah, looking at your profile, it's a '74.

The OEM Delco distributor is a good one. You could keep it with the Pertronix conversion. Or, the MSD 6A module can be triggered by a points distributor. This uses the points to trigger the module and the module takes over the coil switching. You'll get a much hotter and longer spark, and the points will last a long time, until the fiber block wears out.
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Tim Reese
Maine beekeeper's truck: '77 J10 LWB, 258/T15/D20/3.54 bone stock, low options (delete radio), PS, hubcaps.
Browless and proud: '82 J20 360/T18/NP208/3.73, Destination ATs, 7600 GVWR
Copper Polly: '75 CJ-6, 304/T15, PS, BFG KM2s, soft top
GTI without the badges: '95 VW Golf Sport 2000cc 2D
ECO Green: '15 FCA Jeep Cherokee KL Trailhawk
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  #7  
Old 02-09-2020, 12:39 AM
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mwood65 mwood65 is offline
258 I6
 
Join Date: Jul 17, 2017
Location: Arizona
Posts: 347
OK, Thanks for your input.


This spring I am going to go one way or another and change it.
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  #8  
Old 02-10-2020, 02:34 PM
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Heep-J4000 Heep-J4000 is offline
232 I6
 
Join Date: Feb 09, 2014
Location: Schoorl ,the Nederlands
Posts: 179
The pertronix ignition is a really good setup if you ask me!

I installed one on my 73 j-4000 with 360 last year and never had to look back at it!

Sadly the 360 engine stopped running on al cylinders last oktober ,so I guess it's at it's end after 13 years of every day use.
But the pertronix ignition was doing perfect!
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  #9  
Old 02-18-2020, 01:24 AM
bagusjeep bagusjeep is offline
232 I6
 
Join Date: Aug 04, 2018
Location: Bali
Posts: 34
you have a 258 so plenty of choice.

Cheapest distributor is the Motorcraft style fitted to later 258. Seems they are $30 or so reman at your local store. Going to fit, not going to chew your cam, going to have the right curve. Spec one for a 1980 CJ7.

Add to this the distributor cap, rotor and adapter from a late 70s Ford I6 300ci. $20. Spec the brass terminals.

Add a new spark plug seat from aforesaid Ford (the distributor cap requires different leads). i bought genuine Motorcraft $25 a set.

Now choose an ignition module and wire it up. You could use an MSD6A, nothing wrong with it, or a Motorcraft Dusraspark module but I suggest an HEI module $25. If you are any good at wiring etc this is easy to wire up. You may want to heat sink it.

You can run this with the old coil or, because the ignition is now more efficient, go for an e-core or a TFI coil. You can open up the spark plug gaps a bit as well.

I used the petronix igniter on my CJ3A and I have to say I was very impressed. If i had a good condition points distributor, I would consider this. Took 30 minutes to install and it was so easy, the working parts all sit within the distributor.

You will find it revs cleaner and higher as the points are gone and the big dizzie cap is getting more energy to the right plug.

or get a clone of an hei off fleabay for same and pray it does not eat your cam or have a wild curve.

I put a petronix igniter on my CJ3A and it was great, took 30 minutes and was simple. If my points dixzzie is in good condition, this route is perfect as it keeps teh stock timing etc but revs better.
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  #10  
Old 02-19-2020, 06:57 AM
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bufurd bufurd is offline
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Location: ashland wi.
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Petronix conversion and forget about it.
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