Treat it as a 'bare' engine, everything that has already been mentioned plus vacuum control, engine harness and coolant hoses will need to be swapped. It'd be wise to check under the insulating sock of the exhaust crossover pipe for any soot indicating a leak and it goes without saying that the rear belt is best changed at the same time as the HP fuel pump, I'd also suggest oil pump, front timing & auxiliary belts, idlers & tensioners.