I HAVE A 2000 CADILLAC STS NORTHSTAR AND AM SWAPPING WITH A 1999 NORTHSTAR?

[ttompetty]

IM SEEING SLIGHT VARIATTIONS IN THE TWO MOTORS,,, SPARK IS DIFFERENT,, 99 USES COIL PACK, 2000 USES COIL OVER,, I FIGURE I CAN CHANGE THE VALVE CAPS AND USE THE COIL OVER SO MY HARNESS MATCHES,, BUT NOW IM SEEING THAT THE THROTTLE BODY IS DIFFERENT,, SPECIFICALLY THE MAP OR MAF SENSOR LOCATED IN THE AIR HOUSING TUBE,,ONE IS AT THE THROTTLE BODY, THE OTHER IS AFTER THE TUBE BY THE AIR CLEANER,,, I HAVE EXTENSIVE KNOWLEGDE OF CARS AND WIRING AND IM SURE I CAN MAKE THE TWO COMPATABLE BUT CAN ANYONE TELL ME ANYTHING ELSE I MAY RUN INTO WITH THE TWO DIFFERENCES AND WHAT THEY HAVE DONE TO SWAP THESE TWO MOTORS,, I HAVE REBUILT A NORTHSTAR MOTOR IN THE PAST AND KNOW ALL ABOUT EVERY SENSOR ON THESE ENGINES,, I CAN CUT AND SPLICE CONNECTIONS... JUST LOOKING FOR A HEADS UP ON WHAT IM GOING TO RUN INTO,,, IT DOES LOOK LIKE THE CROSSOVER TUBE FOR THE COOLING HAS A DIFFERENT BOLT PATTERN,,?,, ART