[60sStuff]

A deeper dive into the “one year only” 1965 GTO notched fan.

There were various types of cooling fans used on GTO’s throughout the years.

In 1965 only two aluminum blade fans were used on the GTO.

1) A 17 inch curved blade was used on 3.55, 3.36, 3.23 etc. axles, plus non air condition cars.

2) A 19 inch notched blade was used on the high performance 3.90, 4.33 axles, plus all Air Condition GTO’s for extra cooling. Also a fan shroud was used in addition on the AC cars.
The notch in the blades were made to clear the shaft/nut on the power steering pump in case the car was ordered with that PS option.

Another note about 1965 fans.
Early fans used round head rivets.
Late fans used flat head rivets.

Below are several examples I have showing the 17’’ and 19’’ with the different rivets.