ECM Change
11-03-2010, 10:07 AM
Join Date: Nov 2010
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ECM Change
I purchased an 85 F150 with a 4.9 300 six in it. I was going to rebuild the six, but after I got started decided to switch to a new 5.8. My question is do I need to change the ECM or not, and is there anything else I need to be concerned with. Thank you for your help
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