Is this a fair radiator?

It's a little different. I made mine one piece. If you cover your wood with plastic it will pop off with ease.

Also another thing that was interesting is fan position in shroud. I quote

:Depth of fan shroud. The fan shroud extend to only over 1/2 of the fan blade. A very common error is to completely enclose the fan blade within the shroud. The fan shroud should only enclose 1/2 the fan blade. I happened to meet an aeronautical engineer at a local cruise in and he explained that 1/3 of the fan's air flow comes off the tips in a vortex. If you completely cover the tips, the air is trapped, forced back in and counter-acts the air flow. The first fan shroud I made completely covered the fan blades. At a stop light, I could see the engine temperature slowly creeping up. I took his advice, cut off about 1" all around and now the temperature is rock steady even at stop and go traffic in 90 degreeF weather.