Chevrolet Repair: engine harness, engine harness, harnesses

Question
I am changing motors in a 1997 silverado. i am going from the vortec 5.7 to a regular 1992 5.7 i have both engine harnesses but dont know how to go about changing them or can i possibly use the vortec harness. any help will be greatly appriciated

Answer
HI DAN,YOU ARE GETTING INTO ALOT OF WORK...CANT YOU GET THE SAME YEAR ENGINE FOR IT ???? YOU WILL HAVE TO REPLACE ALL THE HARNESSES,SENSORS AND PCM AND ON AND ON...WE DO NOT DO THIS AT OUR SHOP UNLESS SOMONE REALLY LOVES THERE CAR  AND HAS ALOT OF $$$. IT CAN BE DONE.JUST PLAN ON REPLACING EVERYTHING AS I SAID ABOVE. GOOD LUCK TOM.. IF YOU NEED MORE INFO LET ME KNOW.