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Old 04-08-2017, 12:21 AM
alley oop's Avatar
alley oop alley oop is offline
232 I6
 
Join Date: Jul 20, 2014
Location: eastern oregon
Posts: 34
Ready to upgrade

Well the time has come the ol Prestolite system took a dump when to fire up the blue beast it started right up, got the chock set just right and it was just like I turned the key off dead. The first thing I thought of was the gold box on the fender well went south,and who knows how long it been there, so off to the part store for a replacement. Installed the new box after cleaning the mounting surface to make sure it had a good ground cleaned the 4 pin connector to the box and the 2 pin connection to the distributor and the ground pin and it mounting surface .it has a full 12 volts to box and coil. I have spark from the coil to the distributor cap but nothing from the distributor to #1 plug, my next guest is that the pickup coil in the distributor is bad I don’t really what to throw any more $$$$ at it so.
IT TIME TO UPGRADE
I read a article on here in tech/electrical/ignition upgrade by Gary Boyd on distributor upgrade and think of going with this upgrade

Cardone Select new Electronic Distributor (p/n 84-4891) Motorcraft Distributor for a 79 360ci

msd distributor cap and rotor kit for 84 ford F-350 460ci O’Reilly part #8414

BWD TFI style coil for 84 ford F-350 460ci O’Reilly part # E92p

BWD select ignition control module O’Reilly part # CBE7 or A Msd 6 off road series module with a good quality set of plug wires

my biggest concern is how well that msd module will hold up to heat don’t what to spend the $215 if it’s going to die from heat stroke under the hood if so a can buy a few spare stock modules to keep under the seat.
The msd seams to be easier to wire into the 77 harness I haven’t found any wiring diagrams on how to wire up the Dura spark module
How many of you upgraded your Prestolite ignition in earlier jeep with this upgrade do you know of any wiring diagrams all comment and suggestion welcome
thanks
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  #2  
Old 04-08-2017, 12:53 AM
DBX11's Avatar
DBX11 DBX11 is offline
232 I6
 
Join Date: May 18, 2009
Location: Northern Kentucky
Posts: 208
I have an 88 that the P.O. put an hei in and had trouble finding quality hei modules once the original went south. I wired up the msd 6a i got off craigslist and it was pretty easy no issues since, it also fires up and runs everytime too.
My 78 is running off the fender box module and motorcraft distributor still and when it goes i plan to do the ford cap rotor with the msd 6 box.
I'd get the msd box and the ford tfi cap and rotor and a good msd blaster 3 coil, gap your plugs up to .45
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  #3  
Old 04-08-2017, 07:16 AM
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fulsizjeep fulsizjeep is offline
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Join Date: Aug 21, 2002
Location: Jubilee Jeeps.SWCO
Posts: 22,263
I have found that a fairly common reason for an HEI to start blowing modules is actually in the pickup coil down in the bottom of the dizzy.

Buy two of these and save your self some money on the other options.

https://www.skipwhiteperformance.com...8512-bl_79254/
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Ran when parked.
http://jubileejeeps.org/quadratrac
88 GW, 401/727/208, 5" lift, D44s/4.10s/locked up, 35s and a few Evil Twin mods, http://eviltwinfab.com and a few TT's Fabworks mods, http://www.ttsfabworks.com
76 401 Wag, 77 401 Wag, 77 401 J20
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  #4  
Old 04-09-2017, 09:15 AM
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serehill serehill is offline
Gone,Never Forgotten.
 
Join Date: Nov 22, 2009
Location: Mesquite Texas
Posts: 8,622
Quote:
Originally Posted by DBX11
I have an 88 that the P.O. put an hei in and had trouble finding quality hei modules once the original went south. I wired up the msd 6a i got off craigslist and it was pretty easy no issues since, it also fires up and runs everytime too.
My 78 is running off the fender box module and motorcraft distributor still and when it goes i plan to do the ford cap rotor with the msd 6 box.
I'd get the msd box and the ford tfi cap and rotor and a good msd blaster 3 coil, gap your plugs up to .45


Ditto
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80 Cherokee
360 ci 727 with
Comp cams 270 h
NP208
Edlebrock performer intake
Holley 4180
Msd total multi spark.
4" rusty's springs
Member, FSJ Prissy Restoration Association

If you can't make it better why waste your time. No use repeating the orignal mistakes. I'm to old to push it that's why.
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  #5  
Old 04-09-2017, 07:15 PM
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acct21 acct21 is offline
327 Rambler
 
Join Date: May 20, 2014
Location: Austin, TX
Posts: 719
Quote:
Originally Posted by DBX11
My 78 is running off the fender box module and motorcraft distributor still and when it goes i plan to do the ford cap rotor with the msd 6 box.
I'd get the msd box and the ford tfi cap and rotor and a good msd blaster 3 coil, gap your plugs up to .45
+1
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  #6  
Old 04-11-2017, 02:02 PM
Mr Carts Mr Carts is offline
258 I6
 
Join Date: Aug 22, 2011
Location: Middle Of The Mojave Desert
Posts: 256
Here are the parts I ordered from Rock Auto.

I used two spark plug wire sets to get fit I wanted with out making up wires.

AIRTEX / WELLS
4D1004

BOSCH
7522

AIRTEX / WELLS
5C1116

STANDARD MOTOR PRODUCTS
FD168T

STANDARD MOTOR PRODUCTS
FD117T

STANDARD MOTOR PRODUCTS
LX204T

CHAMPION
780043


I also used an Accel HEI module as I could not get the stock chevy one to idle down low enough.

http://www.ifsja.org/forums/vb/showthread.php?t=166790
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3.31 285/75X16 Duratrac's E rated
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  #7  
Old 04-11-2017, 02:05 PM
Mr Carts Mr Carts is offline
258 I6
 
Join Date: Aug 22, 2011
Location: Middle Of The Mojave Desert
Posts: 256
I went thru 2 of the O’Reilly Modules (they lasted 1500 miles and left me stuck) Just go with the HEI.
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1980 Cherokee WT 360 TFI Contour Fan 727 208
3.31 285/75X16 Duratrac's E rated
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  #8  
Old 04-12-2017, 10:33 PM
alley oop's Avatar
alley oop alley oop is offline
232 I6
 
Join Date: Jul 20, 2014
Location: eastern oregon
Posts: 34
let the upgrade begins

well i got a seat full of part today so this weekend the upgrade begins
I when with a

Cardone Select New motorcraft distributor for the 79+

Profrom Hi Performance 45,000 V, Ford, TFI Coil

MSD Cap and Rotor, Clamp-Down, Ford, V8, Kit MSD-8414

MSD 6A control box

the distributor came with a new gear. The motor has less than 100 mile on it, and I put a new set of gears on the cam and distributor when the motor was rebuilt, I was wondering if I should use the gear off the old dead prestolite distributor
or
run the gear that came on the new distributor
is 100 mile enough to seat the new set together i wouldn't think so but i may be wrong what do you guys think
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