Ok did a partsbase search for you, hope these help, they are all USA based.
AN Aviation FL, United States P: 561-337-6029 F: 561-459-8086 Part Number: IO360-A1B6Qty: 1 Description : LYCOMING ENGINE 24:278CC: NE 02/19/2009
A.P.S., Inc. FL, United States P: 863-619-7194 F: 413-643-6106 
***OVERSEAS CLIENTS PLEASE CALL 863-619-7194*** Part Number: IO-360-A1B6Qty: 2 Alt Part Num: IO-360-A1B6CC: FN Description : Complete Engine 02/16/2009
A.P.S., Inc. FL, United States P: 863-619-7194 F: 413-643-6106 ***OVERSEAS CLIENTS PLEASE CALL 863-619-7194*** Part Number: IO-360-A1B6Qty: 2 Alt Part Num: IO-360-A1B6CC: OH Description : Complete Engine 02/16/2009
Wentworth Aircraft MN, United States P: 800-493-6896 F: 612-722-1024 10000s of Single Engine A/C Salvage Parts Available - Not in Database. Piper, Cessna, Mooney and more. Please mention PartsBase when you call. Inventory always changing. Ask about Ebay auctions. Wentworth Aircraft, Inc. Home Page, The worlds Largest Supplier of Cessna/Cherokee parts.. Part Number: IO360-A1B6Qty: 1 Description : engine availability consta...CC: SV 01/30/2009
Last edited by NutLoose; 24th Feb 2009 at 12:20.