Pan would be the same pulleys should be the same . If you both have a single bolt tensioner it should be atleast. If one or the other you may need to swap timing covers. As long as you have both engines you should be good. Some things may differ aswell if you have a windsor and the crown vic is a romeo - valve covers would be different and one or the other will either have a 6 bolt or 8 bolt crank.
98 Cobra_stock bs/exhaust [SOLD]
2000 s/c gt, 511rwh 450rwtq [SOLD]
1995 331 Turbo Gt, 420rwhp 498rwtq
1998Gt , PI SWAP + Bolts ons (Build in Progress)