Mustang heart in a cougar

meknized · 02-05-2005, 09:35 PM

Hello,

I have a question I need a answer to, maybe you guys can help. I have a 87 cougar XR-7 that has the NON- H.O. 5.0 in it. The motor is shot, so I have an engine out of a 92 lx that I'll put into the cougar. I know the H.O. and non- H.O. have different firing orders and that everything will physically bolt in and you have to redo the plug wires in the H.O. firing order. The question is: does the injector wiring plugs also have to be changed in the H.O. order to inject the fuel in the right cylinder?

I've only messed with mustangs so I'm at a loss. Thanks for any advice.

red82gt · 02-05-2005, 10:53 PM

I think that you do have to switch the order of the injectors in the harness (switch the 3 and 5, etc...), or use the HO underhood harness.

meknized · 02-06-2005, 12:45 AM

Okay I'll try the H.O. engine harness. I'll see if the donor car had one or not. It won't take long to see if it'll run right. thanks

02-05-2005, 09:35 PM	#1
meknized fox fanatic Join Date: Jul 2004 Location: wichita Ks. Posts: 61	Mustang heart in a cougar Hello, I have a question I need a answer to, maybe you guys can help. I have a 87 cougar XR-7 that has the NON- H.O. 5.0 in it. The motor is shot, so I have an engine out of a 92 lx that I'll put into the cougar. I know the H.O. and non- H.O. have different firing orders and that everything will physically bolt in and you have to redo the plug wires in the H.O. firing order. The question is: does the injector wiring plugs also have to be changed in the H.O. order to inject the fuel in the right cylinder? I've only messed with mustangs so I'm at a loss. Thanks for any advice. __________________ meknized Blue/silver 89 GT, Coast 331, ported GT-40x heads, X cam, cobra intake, 70mm TB, 75mm bullet, mac intake, 24lb inj, 255 lph fuel pump, accufab regulator, pulleys, MSD coil, 6AL, 300+ wires, Tremec 5 spd. pro 5.0 shifter, FMS drive shaft, headers, X-pipe, flowmasters, auburn pro series posi. moser 31s axles,3:73s, etc. Best ET 12.02@112.5 a pic A vid of a run:http://www.youtube.com/watch?v=l9JMcErxML8

02-05-2005, 10:53 PM	#2
red82gt Sober voice of Reason Join Date: Nov 1998 Location: Kelowna, B.C., Canada Posts: 1,514	Re: Mustang heart in a cougar I think that you do have to switch the order of the injectors in the harness (switch the 3 and 5, etc...), or use the HO underhood harness. __________________ 393W: AFR 205's, hydraulic roller, TKO600.

02-06-2005, 12:45 AM	#3
meknized fox fanatic Join Date: Jul 2004 Location: wichita Ks. Posts: 61	Re: Mustang heart in a cougar Okay I'll try the H.O. engine harness. I'll see if the donor car had one or not. It won't take long to see if it'll run right. thanks __________________ meknized Blue/silver 89 GT, Coast 331, ported GT-40x heads, X cam, cobra intake, 70mm TB, 75mm bullet, mac intake, 24lb inj, 255 lph fuel pump, accufab regulator, pulleys, MSD coil, 6AL, 300+ wires, Tremec 5 spd. pro 5.0 shifter, FMS drive shaft, headers, X-pipe, flowmasters, auburn pro series posi. moser 31s axles,3:73s, etc. Best ET 12.02@112.5 a pic A vid of a run:http://www.youtube.com/watch?v=l9JMcErxML8

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Safety Issue 64 - 70 Mustangs	Mach1 Cobra Jet	Classic Mustangs	20	07-11-2005 08:06 PM
Yellow Mustang Stampede TULSA OK August 17	stylin99	Ford Show & Go	2	11-09-2004 11:19 PM
Myrtle Beach Mustang Week 7/22-28/2002	GreenMachine93	Ford Show & Go	0	06-21-2002 05:59 PM
89-Mustang pulling trailer -vs- 2000 Mustang	Five0	Stang Stories	7	04-01-2001 02:50 AM
Salaeen, Shelby, Cobra please define these for me.	Taqus	Blue Oval Lounge	3	01-17-2001 02:39 AM