1964-1965 Ford Mustang, Fastback, Coupe, Convertible, GT, Shelby GT-350, Falcon, Sprint, Fairlane, Ranchero, Mercury Cougar, XR7, Comet, S-22, Caliente, Cyclone. . . ....     260 / 289 2V-4V-HIPO Thermostat Housing-Water Neck.   'ALUMINUM'.   This is an ORIGINAL FORD PART.   Casting Number (FoMoCo) C4OE-8594-A.  Looks to be Dated (6...64).. The Housing is in Good Original Condition..  NO Cracks or Damage.  There is some Pitting on the Metal, This Will Still Mount and Seal Well. .  Good Mounting Surface. No Heavy Corrosion . . Overall, this is a Good Original 260-289 Thermostat Housing..   Impossible To Find Original. ..  Please email with questions.         051718-13           CHECK OUT OUR EBAY STORE WITH THOUSANDS OF ORIGINAL FORD PARTS.