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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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Need some help on a 5.0 swap.

  • Thread starter Thread starter 69restomod
  • Start date Start date Aug 29, 2007
6

69restomod

licensed drug dealer!
Founding Member
Jul 25, 2000
562
0
16
San Benito, Texas United States Of America
Aug 29, 2007
#1
  • Aug 29, 2007
  • #1
I have a 5.0L HO engine and AOD transmission from a '91 Tbird LX. I also have a '89 Mustang Coupe which used to be a 4cylinder. The electrical system was ruined in teh coupe when it was sold to the person I bought it from.
So I have a entire wiring system from another 89 mustang with computer for a AOD.

My quesitons are as follows
.
1.) The engine should work perfectly fine since the firing order and rotation of the assembly is the same as a 89 5.0L Mustang.

2.) The accessory brackets for a mustang would be needed. So the transfer of the accessories (i.e the a/c, power steering and smog pump) would be easier.

3) The spindles and braking system for a 5.0 would be needed. To help support and stop the car with the extra wieght from the V8.

4.) The wiring should not be a problem since the only thing being transferred is the engine and AOD.


Thanks for any help that you can offer.
 

cenok is family

15 Year Member
Jun 25, 2003
1,409
69
79
Norman, Ok
Aug 29, 2007
#2
  • Aug 29, 2007
  • #2
so what's your question? for #4, you need a v8 harness. 4 cyl harness won't work.
 

88mouse

New Member
Apr 18, 2007
630
0
0
Mooresville nc
Aug 29, 2007
#3
  • Aug 29, 2007
  • #3
All so you may want to get the head light harness. On the 4cyl the atl. is on the drivers side, V8's there on the pass..

You can run the 4cyl brakes. But its best to upgrade them.
 

sickstang88

New Member
Feb 17, 2004
14
0
0
new jersey
Aug 30, 2007
#4
  • Aug 30, 2007
  • #4
i just did a 4 cyl to v8 swap on a 90 coupe and i didnt need to change any of the wiring harness under the hood . everything plugged right in, only thing i saw that was different was the harness was a little shorter than a v8 cars would be but it did work just fine.
 

sickstang88

New Member
Feb 17, 2004
14
0
0
new jersey
Aug 30, 2007
#5
  • Aug 30, 2007
  • #5
oh and i just did the spindels and brakes too. your gonna need struts from a v8 car. the part that bolts the spindle to the strut is smaller on the v8 and the front axle is also smaller in diameter than the 4cyl
 

sickstang88

New Member
Feb 17, 2004
14
0
0
new jersey
Aug 30, 2007
#6
  • Aug 30, 2007
  • #6
duh, i just relized im not running an ecu. thats why i didnt have to change my harness
 
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