The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1969 - 1972 Blazers and Jimmys Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 08-04-2023, 08:09 AM   #1
Shock_Me
Senior Member
 
Shock_Me's Avatar
 
Join Date: May 2005
Location: New Brunswick, Canada
Posts: 591
Electronic Ignition conversion

Hi all. I have a 72 Blazer with a stock 350ci and original points distributor. I'd like to convert it to electronic ignition but the cap seems pretty close to the firewall. Can someone point me to a unit that would fit in there please? I'll admit I haven't searched around much yet, I decided to come to the experts first

Thanks
Shock_Me is offline   Reply With Quote
Old 08-04-2023, 12:00 PM   #2
tim71
Senior Member

 
tim71's Avatar
 
Join Date: Oct 2015
Location: Brownsburg, IN
Posts: 1,103
Re: Electronic Ignition conversion

Pertronix makes a small body electronic distributor that is the same size as your original distributor. It also looks like the original distributor. It also uses an external coil like the original distributor. I use this distributor on both my truck and blazer and have been satisfied with its performance. For more information go to Summit, Jegs or most other performance retailers websites.
__________________
1972 Blazer Highlander
1971 GMC K1500 SWB (sold)
2004 Corvette Z06 CE

Last edited by tim71; 08-04-2023 at 12:02 PM. Reason: Misspelled word
tim71 is offline   Reply With Quote
Old 08-04-2023, 03:04 PM   #3
truckster
Senior Member
 
truckster's Avatar
 
Join Date: Jan 2001
Location: Orem, Utah
Posts: 7,976
Re: Electronic Ignition conversion

I have a full-size HEI in mine and I haven't done anything to the firewall. It's a tight fit, but it works.
__________________
I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson
truckster is offline   Reply With Quote
Old 08-05-2023, 08:11 AM   #4
'68OrangeSunshine
Senior Member
 
'68OrangeSunshine's Avatar
 
Join Date: Feb 2002
Location: Tucson, AZ USA
Posts: 7,500
Re: Electronic Ignition conversion

You can also get an HEI distributor with a Remote Coil Cap. It has a lower profile and you put the distributor in the normal place and use a coil that sits in the traditional coil perch on the manifold, You have to find a coil that has the same resistance, voltage, and wattage as the stock modular coil.
__________________


Every 25 years I like to rebuild that 292, whether it needs it or not.
'68OrangeSunshine is offline   Reply With Quote
Old 08-05-2023, 05:25 PM   #5
truckster
Senior Member
 
truckster's Avatar
 
Join Date: Jan 2001
Location: Orem, Utah
Posts: 7,976
Re: Electronic Ignition conversion

I took a picture in case it helps. You can see that the plug wires are close to the firewall but there's a little bit of clearance. This is without modifying the firewall.
Attached Images
 
__________________
I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson
truckster is offline   Reply With Quote
Old 08-07-2023, 08:05 AM   #6
Shock_Me
Senior Member
 
Shock_Me's Avatar
 
Join Date: May 2005
Location: New Brunswick, Canada
Posts: 591
Re: Electronic Ignition conversion

Thanks all! I have some options to check into now. Cheers
Shock_Me is offline   Reply With Quote
Old 01-25-2024, 08:34 AM   #7
flyingcubby
Registered User
 
Join Date: Jul 2013
Location: Converse, Texas
Posts: 103
Re: Electronic Ignition conversion

I have a electronic. On day some 25 years ago a great friend who was a gm dealership mechanic. Asked me one day to Borrow the blazer to go to work. Surprised me by replacing the stock distributor with stock electronic system (big cap). No mods were made to firewall.
flyingcubby is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 06:39 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com