Notices
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Resistor wire for engine swap?

Thread Tools
 
Search this Thread
 
Old Aug 21, 2015 | 12:21 AM
  #1  
xlhr8r's Avatar
xlhr8r
Thread Starter
|
New User
Joined: May 2015
Posts: 22
Likes: 0
Resistor wire for engine swap?

Hi, putting a '73 4.9L engine in an '83 f250. Want to know if I need to use a resistor wire for coil. Using complete '73, carb, dist, coil, etc.. Any info will be helpful. Thanks...
 
Reply
Old Aug 21, 2015 | 05:31 AM
  #2  
roadrash63's Avatar
roadrash63
Elder User
Joined: Jun 2009
Posts: 907
Likes: 6
From: nw pa.
Yes
You will need a resistor or resistor wire while the ignition switch is in the run position.you can buy the wire with the resistor built in (dont shorten) or
You can do what i did use a ceramic resistor like for a 55 chevy or dodge used them in the 70's.just wire it in and mount.
 
Reply
Old Aug 21, 2015 | 12:12 PM
  #3  
Gary Lewis's Avatar
Gary Lewis
FTE Legend
15 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
But, unless the 83 was a diesel a resistor wire is built in to the harness.
 
Reply
Old Aug 21, 2015 | 12:16 PM
  #4  
Jagesage's Avatar
Jagesage
Junior User
Joined: Jun 2015
Posts: 74
Likes: 0
The coil's are different, so where it is built in, is a different set up
 
Reply
Old Aug 21, 2015 | 12:21 PM
  #5  
Gary Lewis's Avatar
Gary Lewis
FTE Legend
15 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
If you use the factory coil wiring there is a resistor built in. To use a separate one will require separate wiring. And there is no reason I can see to do that.
 
Reply
Old Aug 21, 2015 | 12:26 PM
  #6  
1986F150six's Avatar
1986F150six
Lead Driver
Joined: Jul 2009
Posts: 6,477
Likes: 19
From: Sheffield, AL
Please excuse the Hijack...
Gary, have you checked your PM box?
 
Reply
Old Aug 21, 2015 | 12:29 PM
  #7  
JimsRebel's Avatar
JimsRebel
Cargo Master
15 Year Member
Photogenic
Photoriffic
Community Builder
Joined: Mar 2008
Posts: 2,589
Likes: 212
From: Washington
Originally Posted by xlhr8r
Hi, putting a '73 4.9L engine in an '83 f250. Want to know if I need to use a resistor wire for coil. Using complete '73, carb, dist, coil, etc.. Any info will be helpful. Thanks...
Does the 1973 use a point dist.
 
Reply
Old Aug 21, 2015 | 12:53 PM
  #8  
Gary Lewis's Avatar
Gary Lewis
FTE Legend
15 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
Originally Posted by 1986F150six
Please excuse the Hijack...
Gary, have you checked your PM box?
Have now and have responded. Thanks! Hijack over.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

10 Ways Ford is LOSING to the Competition

 Joe Kucinski
story-1

Top 6 Best Deals Available on New Fords & Lincolns Right Now

 Brett Foote
story-2

This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

 Verdad Gallardo
story-3

Top 10 Fords at 2026 Carlisle Ford Nationals

 Joe Kucinski
story-4

3 Best / 3 Worst Parts of Modern Ford Ownership

 Brett Foote
story-5

10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

 Pouria Savadkouei
story-6

Every 2026 Ford Engine Explained

 Brett Foote
story-7

10 Ugly Ford Trucks That We Still Kinda Love

 Joe Kucinski
story-8

10 Things Every Truck Owner NEEDS (2026 Edition)

 Michael S. Palmer
story-9

Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

 Verdad Gallardo
Old Sep 9, 2015 | 02:33 AM
  #9  
xlhr8r's Avatar
xlhr8r
Thread Starter
|
New User
Joined: May 2015
Posts: 22
Likes: 0
Better late than...

Hey, thanks. Just been real bz. Just wondering if you know if i can just use the '83 electronic distributor. I just bought a new one while i was trying to figure out what is wrong with '83. I'd rather use the '83 ignition, at least for now. I'm just too caught up in other things to fool around with changes.
Thanks again for the response.
 

Last edited by xlhr8r; Sep 9, 2015 at 02:48 AM. Reason: Detail
Reply
Old Sep 9, 2015 | 02:41 AM
  #10  
NumberDummy's Avatar
NumberDummy
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 790
From: Simi Valley, CA
Club FTE Gold Member
Originally Posted by xlhr8r
Hi, putting a '73 4.9L engine in an '83 f250. Want to know if I need to use a resistor wire for coil. Using complete '73, carb, dist, coil, etc..
The resistor wire is already present.

D7AZ-12250-A .. Resistor Wire-Ignition Coil (Motorcraft DY 213) / Obsolete ~ Available NOS & from auto parts stores.

49" long / Color coded red with green stripes / 1.30-1.40 ohms resistance / #16 gauge wire.

Applications: 1977/89 F100/350, Bronco & Econoline.

DuraSpark electronic ignition introduced in 1974, but not all vehicles came with it until 1976.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
672wd72highboy
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
2
Jun 18, 2014 06:53 PM
eficat
1973 - 1979 F-100 & Larger F-Series Trucks
12
Jul 29, 2011 09:00 PM
bivens1172
1967 - 1972 F-100 & Larger F-Series Trucks
2
Apr 27, 2005 12:17 AM
Scouder
1973 - 1979 F-100 & Larger F-Series Trucks
5
May 17, 2002 04:49 PM




All times are GMT -5. The time now is 04:06 PM.

story-0
10 Ways Ford is LOSING to the Competition

Slideshow: 10 ways Ford is losing to the competition

By Joe Kucinski | 2026-06-15 09:52:01


VIEW MORE
story-1
Top 6 Best Deals Available on New Fords & Lincolns Right Now

Some great targets in today's expensive world.

By Brett Foote | 2026-06-15 09:35:19


VIEW MORE
story-2
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-3
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-4
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-5
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-6
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-7
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-8
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-9
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE