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.

ECM and Wiring Harness for 351 swapped Mustang

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Old 05-30-2007, 09:54 PM
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Fox351
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Default ECM and Wiring Harness for 351 swapped Mustang

I am swapping in a 351W with a 5-speed trans and I was wondering if I get a A9L computer and use a stock wiring harness for a 5.0L will it run my 351 with no problem until I can go get a programmable one or build my own like a Megasquirt....or should I just get a programmable up front???
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Old 05-30-2007, 10:35 PM
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r.barn
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Default RE: ECM and Wiring Harness for 351 swapped Mustang

yes it will run it, might need dyno tune to smooth out idle and get max power.
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Old 05-30-2007, 11:43 PM
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ddeaton66
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Default RE: ECM and Wiring Harness for 351 swapped Mustang

+1

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Old 05-31-2007, 04:36 PM
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Fox351
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Default RE: ECM and Wiring Harness for 351 swapped Mustang

thank you sir...I appreciate it alot I am planning on down the road getting a programmable but right know I will run with that setup...thanks a million.
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Old 05-31-2007, 04:42 PM
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jasonvri
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Default RE: ECM and Wiring Harness for 351 swapped Mustang

Yep,
The MAF meter and cam will probably have more of an impact on the 'drivability' than the CID will...

You won't have any major issues though,

jason
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