What are these part numbers for?

[ChargerRob]

Can somebody look up these part numbers for me.

Fan Clutch (2658456)
Fan   (2863216)

Thanks, Robert

[Ghoste]

Fan- 68-71 B-body-383 or 440 with max cooling and ac
69-71 C-body-V8 with ac
73 A or E body 340 or 318 with ac
70-72 340 or 426 without ac
73 C-body-318 with ac or police or taxi with 360

Fan clutch-66-361
66-69 383 or 440 with ac
1970 B-body with 383 or 440 with ac

[ChargerRob]

Thanks a Million Ghoste. 

Is there a book you use to decode the part numbers?

Where can I get one?

Thanks,  Robert

[Ghoste]

Those particular ones I grabbed out of a book by Paul Herd called, "Chrysler Muscle Parts Interchange Manual 1968-1974".  It has a few mistakes in it but overall it's a very handy reference.  I also have the Chrysler parts catalogs for 67, 68, and 69 but they are harder to get now.
The first one I likely ordered through Motorbooks International's website.