With a 350 and a/t, the factory used a 3 row. Add on a/c and they used a 4 row. The support for the 67-72 is different, but you should be able to adapt by using the newer mounts. You can buy them for a 3 row or 4 row. The 4 row in my 69 measures 19"T X 36"W X 2"D.

Some of the guys at the 67-72 board are using a 73-80 radiator. It's not quite as tall, and they say it's cheaper.


Fred
52 3600
69 C-10