These are the overhaul and parts manuals Lycoming 0-320 H engine on a Flash Drive. This is the engine used in the  Cessna 172 N .  on USB flash drive 

These manuals are in PDF format so you can view zoom and print any or all pages. All manuals are searchable, printable, bookmarked and indexed. Contained are the following lycoming manuals: 

1. 0-320H Lycoming 76 series overhaul manual , 60294-9. 91 pages.

2. PC-122-1 0-320H Lycoming 76 series parts catalog. 33 pages.  

3. A&P Faa manual.

Download available.   USB flash drive