Im putting a 4.3L engine out of a 02 Silverado into an 80 model jeep. I had a custom harness made from Hot Wire they gave me a part number for the pcm that I needed. When I went to the salvage yard the only pcm they had with that part number was for an 02 Escalade 6.0L. I called O'Reilly and they said that the v6 and v8 trucks pcm shared the same part number. So can I just copy a v6 truck tune into the v8 pcm and it work? thanks