I also have a 1965 289 4bbl. The date stamped on the motor is Sept. 22, 1964. It does have the gold valve covers. However, the engine block, manifold, water pump, etc are Ford blue. From what I was told this was the original untouched motor. I cannot find any evidence of black paint under the blue. Does anyone know the cutoff time when Ford changed from black to blue. Could some of the 65's have the blue motors?