I was looking at it also...
The radiator looks like the 70's style, not like the 67 - 68 rounded top tank... I thought that they used the rounded tanks in 69 also and changed to the more square tanks in 70 when they changed to the aluminum water pump...
But if it was a 70 radiator with a cast iron water pump, the lower radiator hose will be on the opposite side.... :BangHead: