5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

If i swap in a 87 5.0 can i just use the 4cyl harness?

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Old 11-22-2005, 04:59 AM
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OJMiles
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Default If i swap in a 87 5.0 can i just use the 4cyl harness?

Hello all

I have a 87 notchback that i'll be swapping a 5.0 in shortly (also out of an 87) Can I just plug my 4cyl connections in, cause preliminary looks say yes (I have the 5.0 computer also)... otherwise i'll just go ahead and carb it like my original plans were...

Thanks in advance

-- O.JeremyMiles
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Old 11-22-2005, 09:09 AM
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hotstang97gt
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Default RE: If i swap in a 87 5.0 can i just use the 4cyl harness?

yes you need to swap over the harness, the main harness with the comp # needs to match up to the # on the comp it self. i dont think you can just use any 5.0 comp. you will also need the fuel injected harness.
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Old 11-22-2005, 10:27 AM
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86HOGT
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Default RE: If i swap in a 87 5.0 can i just use the 4cyl harness?

I'm sure the computers use the same 60 pin type connector but swapping shouldn't be too hard.
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Old 11-22-2005, 12:19 PM
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stanglx2002
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Default RE: If i swap in a 87 5.0 can i just use the 4cyl harness?

you have to swap the harness bc they wont match up you need a new main harness and injector harness
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Old 11-24-2005, 12:04 AM
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silver91gt
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Default RE: If i swap in a 87 5.0 can i just use the 4cyl harness?

the 4 cyl harness only uses 4 injectors,

it isnt hard to change out the harness. it just takes some patience and mabye a little beer.
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