You will probally need an aftermarket harness as the 97 harness is also part of the body harness,You also need the mass air flow meter,ecm,and the fuel pump pressure is 35-45 lbs for the vortec motor.. But as far as bolting it in,not a bad job.... Try looking for a harness ,some companys ask you what you are putting it in and what year engine and will make a custom one...Hope this helps some,Erick
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