The C320 has evolved greatly since its introduction in 1993. This table attempts to capture as much information about where and what changes were made along the way. It is quite incomplete at this point but will improve over time if owners contribute data.
If you own a C320 and can provide details about your hull, model year, and any other info that will help paint a more complete picture, please feel free to log in and add your details. If you're not comfortable with updating this page, contact someone on the board and we'll help out. Specifically, we don't know which hull numbers belong to which model year, unique features or problems you've had fixed, etc.
| Model Year | Hull #s | Comments |
|---|---|---|
| 1993 | 1-18?  | Model Introduced. List price ~$60k. Perkins M30 Engine. Shallow gridpan Bilge. |
| 1994 | 19?-154? | Perkins M30 Engine. Shallow gridpan Bilge |
| 1995 | 181?-255? | Hull Number Range not complete |
| 181 | Perkins M30 Engine. Shallow gridpan Bilge | |
| 238 | Perkins M30 Engine. | |
| 246 | Westerbeke 29B Engine. Deeper Bilge, better draining weep-holes, 7" more draft (4'10") | |
| 1996 | 303?-384? | Hull Number Range not complete |
| 303 | Westerbeke 29B Engine | |
| 317 | Westerbeke 30B-3 Engine | |
| 327 | Westerbeke ?? Engine | |
| 328 | Yanmar 3GM30F Engine | |
| 331 | Westerbeke ?? Engine | |
| 1997 | 448?-468? | Stern seats bumped out, cupholders added |
| 404 | Bad vinylester, factory repaired. Total 3 boats | |
| ~446? | V-berth Bulkhead cutouts eliminated | |
| 447 | V-berth Bulkhead cutouts eliminated, Yanmar 3GM30F Japanese Engine, Old Instrument Pod, 1-2-Both Switch (old electrical panel) | |
| 1998 | 488?-558? | Head redesigned - one mirror eliminated, cabinet smaller, shelf larger, fiddle added |
| 488 | Yanmar 3GM30F Engine. Small aft access panel. Battery switch on starboard wall | |
| 492 | Yanmar, no escape hatch, old elect panel w/ 1-2-Both switch. At some point, galvanic isolation added. | |
| 1999 | 493?-675? | Change to surface mount galley sink (was undermount); Aft Cabin Escape Hatch (after 492, before 592) incls 592, 675 |
| 621 | Has Yanmar Euro 3GM30F engine, new electrical panel, old instrument pod | |
| 675 | Improved Inst. Pod | |
| 2000 | 687?-772? | In-mast Furling option available |
| 688 | Has dark blue canvas, oval shape ports, molded seats on stern platform, toe rails extended futher back than earlier models, upgraded main traveler (2000 model) Euro Yanmar | |
| 690 | Japanese Yanmar | |
| 692 | Euro Yanmar | |
| 772 | Yanmar 3GM30F-Japan-Wing Keel | |
| 2001 | 7??-??? | |
| 847 | Keel recast back to 4'4" draft (using 310 keel) | |
| 2002 | 859?-??? | |
| 859 | Built in June 2001 and is 2002 model year. I believe this HID is near the model year changeover. Bronze prop shaft and traditional stuffing box | |
| 894 | known to be a 2002 | |
| 2003 | ???-??? | Change to SS prop shafts and dripless packing? |
| 992 | known to be a 2003 | |
| 2004 | ???-??? | Innerspring mattress becomes std equip. Change from ProMariner to Charles chargers? |
| 2005 | ???-??? | Changed to Yanmar 3YM30 |
| 1035 | Yanmar 3YM30 Engine | |
| 2006 | ???-1097 | 1074 Mfg at FL plant |
| 2007 | 1098-??? | Mk II (Introduced Oct. 2006: Numerous changes: New deck mold, more headroom, new AC and DC panels (non-opening), galley sink splash guard, 2nd hanging locker, different cabin opening hatch configuration, shoebox joint and rubrail carried around transom. Enlarged V-berth (smaller anchor locker), ball & socket for rig loads (no chainplates). Deck liner extends length of boat and has A/C ducts. Water increased to 51gal. Has 3YM 29hp Yanmar |
| 2008 | ??? - ??? |
