Series II 3800 is a drive by wire engine. You can use it for a swap by changing the throttle body to the earlier style (Cable operated TB) with an adapter plate and wiring for a series II harness. If you want to use the automatic right side rear trans mount is different (2003-up) and only the 2003 PCM will shift it. If you go stick then any year 96-2002 PCM will run it. Some minor tuning is needed just to adjust the PE fueling to the series III engine but anyone with an editor program can do it. .
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" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS" 87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE " [This message has been edited by Dennis LaGrua (edited 02-18-2019).]