I have a friend using a 4.3L 700 (200?) r4 in a Scout. He has original ECM 16143151 that came with the 91 Chevy Blazer four door 4x4, wrecked, he pulled it all out of.

But I can't find it? Is it the same as another ECM number? He wants to buy a harness today!!! Glad he called me first because he may need an ECM change first.

Second question! If this does not have xdf and adx available I would talk him into a 427 type PCM. But can a 427 PCM run a 700r4?