SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                              ____________________

                                    FORM 8-K


                                 CURRENT REPORT


                       Pursuant to Section 13 or 15(d) of
                       the Securities Exchange Act of 1934

                              ____________________

                  Date of Report
                  (Date of earliest
                  event reported):    May 1, 1997


                               FCB FINANCIAL CORP.               
             (Exact name of registrant as specified in its charter)

         Wisconsin                0-22066                   39-1760287  
       (State or other      (Commission File Number)       (IRS Employer
        jurisdiction                                    Identification No.)
      of incorporation)

                420 South Koeller Street, Oshkosh, Wisconsin 54902    
          (Address of principal executive offices, including zip code)


                                  (414) 727-3400         
                         (Registrant's telephone number)

   

   Item 2.   Acquisition or Disposition of Assets.

             Effective at the close of business on May 1, 1997, OSB Financial
   Corp. ("OSB"), a Wisconsin corporation, was merged (the "Merger") with and
   into FCB Financial Corp., a Wisconsin corporation ("FCB"), with FCB as the
   surviving corporation.  The Merger was consummated in accordance with the
   terms of an Agreement and Plan of Merger, dated November 13, 1996 (the
   "Merger Agreement"), between FCB and OSB.  The Merger Agreement is filed
   as an exhibit to this Current Report on Form 8-K.  Matters with respect to
   the Merger were approved by shareholders of FCB and OSB at special
   meetings of shareholders of such companies held on April 24, 1997.

             Under the terms of the Merger Agreement, each share of common
   stock, $.01 par value, of OSB (the "OSB Common Stock") issued and
   outstanding immediately prior to the effectiveness of the Merger was
   (except as otherwise provided below) cancelled and converted into the
   right to receive 1.46 shares of the common stock, $.01 par value, of FCB
   (the "FCB Common Stock") plus cash in lieu of any fractional share.  All
   shares of OSB Common Stock (i) owned by OSB as treasury stock, (ii) owned
   by the OSB Management Development and Recognition Plans and not allocated
   to participants thereunder or (iii) owned by FCB have been cancelled and
   no FCB Common Stock or other consideration was given in exchange therefor. 
   Of the 1,157,534 shares of OSB Common Stock issued and outstanding at the
   effective time of the Merger, 48,650 shares were cancelled pursuant to the
   preceding sentence and the remaining 1,108,884 shares were converted into
   shares of FCB Common Stock and cash in lieu of fractional shares as
   described above.  Shares of FCB Common Stock which were issued and
   outstanding at the time of the Merger were not affected by the Merger and
   remain outstanding.  In connection with the Merger, Oshkosh Savings Bank,
   F.S.B., a federally chartered stock savings association and a subsidiary
   of OSB, was merged with and into Fox Cities Bank, F.S.B., a federally
   chartered stock savings association and a subsidiary of FCB ("Fox Cities
   Bank").  Fox Cities Bank was the surviving corporation in that merger.

             Pursuant to the terms of the Merger Agreement, directors of OSB,
   namely David L. Baston, Thomas C. Butterbrodt, Dr. Edwin L. Downing,
   David L. Geurden, David L. Omachinski, James J. Rothenbach and Ronald L.
   Tenpas, were added to the Board of Directors of FCB effective as of the
   effective time of the Merger.  In addition, each of Donald D. Parker,
   James J. Rothenbach, Phillip J. Schoofs, Harold L. Hermansen, and Theodore
   W. Hoff have entered into employment agreements with FCB and Fox Cities
   Bank (the "Employment Agreements").  Pursuant to the Employment
   Agreements, each of the above will serve as officers of Fox Cities Bank: 
   Mr. Parker will serve as Chairman of the Board; Mr. Rothenbach will serve
   as President and Chief Executive Officer; Mr. Schoofs will serve as Vice
   President, Treasurer and Chief Financial Officer; Mr. Hermansen will serve
   as Vice President-Retail Lending and Secretary; and Mr. Hoff will serve as
   Vice President-Retail Sales and Service.  The foregoing individuals will
   also serve as officers of FCB in accordance with the Employment
   Agreements.  Copies of the Employment Agreements are filed as exhibits to
   this Current Report on Form 8-K.

             Additional information regarding the Merger, including a
   description of the terms of the Merger and the securities issuable in
   connection therewith and the other transactions contemplated thereby was
   previously reported (as defined in Rule 12b-2 under the Securities
   Exchange Act of 1934, as amended (the "Exchange Act")) in the definitive
   Joint Proxy Statement/Prospectus of FCB and OSB, dated March 12, 1997. 
   The information in the Joint Proxy Statement/Prospectus responsive to the
   requirements of this Item 2 is incorporated herein by reference.

   Item 7.   Financial Statements and Exhibits.

             (a)-(b)   Substantially the same information as that required by
   paragraphs (a) and (b) of this Item 7 was previously reported (as defined
   in Rule 12b-2 under the Exchange Act) in the definitive Joint Proxy
   Statement/Prospectus of FCB and OSB, dated as of March 12, 1997.  Such
   information is incorporated herein by reference.

             (c)  The exhibits furnished with this Current Report on Form 8-K
   are listed on the attached Exhibit Index.


   
                                    SIGNATURE

             Pursuant to the requirements of the Securities Exchange Act of
   1934, the registrant has duly caused this report to be signed on its
   behalf by the undersigned thereunto duly authorized.

                                      FCB FINANCIAL CORP.


   May 12, 1997                  By:  /s/ Donald D. Parker                   
                                      Donald D. Parker
                                      Chairman of the Board


                                 By:  /s/ James J. Rothenbach                
                                      James J. Rothenbach
                                      President and Chief Executive Officer

   
                               FCB FINANCIAL CORP.
                                    FORM 8-K
                                  EXHIBIT INDEX    



     Exhibit
      Number                            Description

         2.1    Agreement and Plan of Merger between FCB Financial Corp. and
                OSB Financial Corp., dated November 13, 1996* [Incorporated
                by reference to Exhibit 2.1 to FCB Financial Corp.'s
                Registration Statement on Form S-4 (Reg. No. 333-23177)]

         2.2    Employment Agreement with Donald D. Parker, dated May 1,
                1997

         2.3    Employment Agreement with James J. Rothenbach, dated May 1,
                1997

         2.4    Employment Agreement with Phillip J. Schoofs, dated May 1,
                1997

         2.5    Employment Agreement with Theodore W. Hoff, dated May 1,
                1997

         2.6    Employment Agreement with Harold L. Hermansen, dated May 1,
                1997

        20.1    Joint Proxy Statement/Prospectus, dated March 12, 1997, of
                FCB Financial Corp. and OSB Financial Corp. used in
                connection with special meetings of shareholders held on
                April 24, 1997  [Incorporated by reference to FCB Financial
                Corp.'s Registration Statement on Form S-4 (Reg. No.
                333-23177)]

        23.1    Consent of Wipfli Ullrich Bertelson LLP


   -------------------
   *    The schedules to this document are neither incorporated by reference
        herein nor filed herewith.  FCB Financial Corp. agrees to furnish
        supplementally a copy of any omitted schedule to the Securities and
        Exchange Commission upon request.