CHEVROLET BLAZER REPLACE/REMOVE

I've Heard That You Are Un­able To Swap A 97' Blazer En­give With A 95' Blazer, Be­cause Of Them Hav­ing Dif­fer­ent Com­put­ers In Them. Is This...

I Am Not New To Chang­ing Parts On En­gines But This One Is Baf­fel­ing Me Where Is It Lo­cated And How Do I Change It?

Other Cat­e­gory Prob­lem 1996 Chevy Blazer V6 All Wheel Drive Au­to­matic 115000 Miles I Re­placed The Therom­stat And The En­gine Still Does...