So, I have a reverse rotation serpentine setup on my 67 small block and have been using a Spal low profile 16" electric fan behind a 20" Champion aluminum radiator. The original electric fan that came with the radiator did not fit with the 80's water pump as I guess they are 3/8 or so longer? The low profile fan I replaced it with produces a lot of noise out the front of the car and is just not acceptable. I have replaced it with a mechanical 87 thermal clutch and a steel Derale 17917 fan. Clutch to radiator clearance is good at 3/4" or so and now need to get a shroud ordered, my question is can I use a 20" shroud off a 70 to accommodate the lower radiator hose on the left side? Is the basic configuration of the rest of the shroud the same as the 20" 67 shroud?